Annual Review of Pteridological Research - 1999

Literature Citations All Citations

1. Abdul Hameed, C. A.&P. V. Madhusoodanan. 1999. Crepidomanes malabaricum, a new filmy fern species (Hymenophyllaceae - Pteridophyta) from Southern India. Nordic Journal of Botany 19: 277-279.

2. Adam, K. 1999. Phenolic constituents of the fern Phegopteris connectilis. Phytochemistry (Oxford) 52: 929-934.

3. Adelia Diniz, M.&F. Carrapico. 1999. The aquatic plants community associated with Azolla pinnata in the Geba River (Guinea-Bissau). Garcia de Orta Serie de Botanica 14: 89-92.

4. Agafonova, L. A., O. K. Vysotskaya, S. V. Kovalsky, N. V. Kolosova, D. B. Koltsov, M. Y. Pletz&S. V. Sukhov. 1999. Floristic notes: New and rare species in the flora of Murmansk Region. 42. [Russian, Botrychium matricariifolium]

5. Ageta, H. 1999. Chemotaxonomy of the plants in Pteridophyta. Natural Medicines 53 (Suppl. 2): 41-45. [Japanese]

6. Al-Rayyes, A. H.&S. Mamish. 1999. 137Cs, 134Cs and 90Sr in the coastal Syrian mountains after the Chernobyl accident. Journal of Environmental Radioactivity 46: 237-242. [Lycopodium cernuum]

7. Alcaraz, M. V., M. A. Pathak, F. Rius, N. Kollias&S. Gonzalez. 1999. An extract of Polypodium leucotomos appears to minimize certain photoaging changes in a hairless albino mouse animal model: A pilot study. Photodermatology, Photoimmunology&Photomedicine 15: 120-126.

8. Alegro, A. L., L. Ilijanic&J. Topic. 1999. Distribution and ecological relationships of the species Matteuccia struthiopteris (L.) Tod. (Athyriaceae) in Croatia. Acta Botanica Croatica 58: 127-139.

9. Ambrosic-Dolinsak, J., M. Camloh&J. Zel. 1999. Plant regeneration from scales of the fern Platycerium bifurcatum (Cav.) C. Chr. Phyton 39: 297-300.

10. Ambrozic-Dolinsek, J., M. Camloh&J. Zel. 1999. Apospory in leaf culture of the fern Platycerium bifurcatum (Cav) C. Chr. Biologia (Bratislava) 54 (Suppl. 7): 10.

11. Anderson, J. M.&S. L. Hetherington. 1999. Temperature, nitrogen availability and mixture effects on the decomposition of heather (Calluna vulgaris (L.) Hull) and bracken (Pteridium aquilinum (L.) Kuhn) litters. Functional Ecology 13 (Suppl. 1): 116-124.

12. Andersson, T. N.&B. Lundegardh. 1999. Growth of field horsetail (Equisetum arvense) under low light and low nitrogen conditions. Weed Science 47: 41-46.

13. Andersson, T. N.&B. Lundegardh. 1999. Field horsetail (Equisetum arvense) - effects of potassium under different light and nitrogen conditions. Weed Science 47: 47-54.

14. Anenkhonov, O. A.&E. G. Martusova. 1999. The new localities of Tridactylina kirilowii (Asteraceae) and Camptosorus sibiricus (Aspleniaceae) in Buryatia. Botanicheskii Zhurnal (St. Petersburg) 84: 126-129. [Russian]

15. Anonymous. 1999. On the genera Czekanowskia and Phoenicopsis (Czekanowskiales) from the Middle Jurassic deposits of Angren (Uzbekistan). Botanicheskii Zhurnal (St. Petersburg) 84(10): 112-117. [Russian]

16. Apostolakos, P.&B. Galatis. 1999. Microtubule and actin filament organization during stomatal morphogenesis in the fern Asplenium nidus. II. Guard cells. New Phytologist 141: 209-223. 17. Araujo, M. B. 1999. Distribution patterns of biodiversity and the design of a representative reserve network in Portugal. Diversity&Distributions 5: 151-163.

18. Archangelsky, A., C. J. Phipps, T. N. Taylor&E. L. Taylor. 1999. Paleoazolla, a new heterosporous fern from the Upper Cretaceous of Argentina. American Journal of Botany 86: 1200-1206.

19. Arnesen, T. 1999. Succession on bonfire sites following burning of management waste in Solendet Nature Reserve, central Norway. Gunneria 76: 1-64. [Equisetum palustre]

20. Arreguin-Sanchez, M. L., R. Fernandez-Nava, C. Rodriguez-Jimenez&A. Rodriguez-Jimenez. 1999. Illustrated genera key of pteridophytes from Querataro State, Mexico. P. 334. In XVI International Botanical Congress - Abstracts.

21. Arreguin-Sanchez, M. L., R. Palacios-Chavez&D. L. Quiroz-Garcia. 1999. Palynological genera key or pteridophytes from Queretaro State, Mexico. P. 336. In XVI International Botanical Congress - Abstracts.

22. Artabe, A. E.&D. W. Stevenson. 1999. Fossil cycadales of Argentina. Botanical Review 65: 219-238. [Ticoa]

23. Ash, S. 1999. An Upper Triassic Sphenopteris showing evidence of insect predation from Petrified Forest National Park, Arizona. International Journal of Plant Sciences 160: 208-215.

24. Ash, S. 1999. An Upper Triassic upland flora from north-central New Mexico, U.S.A. Review of Palaeobotany&Palynology 105: 183-199.

25. Ashcroft, C. J. 1999. Taxonomy and genetics of Pteridium in Britain. University of Manchester, Manchester UK. 120 pp. [Dissertation]

26. Ashcroft, C. J.&E. Sheffield. 1999. Rejection of Pteridium aquilinum subspecies atlanticum (C. N. Page). Botanical Journal of the Linnean Society 130: 157-170.

27. Aso, K., M. Kato, J. Banks&M. Hasebe. 1999. Characterization of homeodomain-leucine zipper genes in the fern Ceratopteris richardii and the evolution of the homeodomain-leucine zipper gene family in vascular plants. Molecular Biology&Evolution 16: 544-552.

28. Augustynowicz, J.&H. Gabrys. 1999. Chloroplast movements in fern leaves: Correlation of movement dynamics and environmental flexibility of the species. Plant, Cell&Environment 22: 1239-1248. [Adiantum capillus-veneris, A. caudatum, A. diaphanum, Pteris cretica]

29. Bach, K., M. Kessler&J. Gonzales. 1999. Caracterizacion preliminar de los bosques deciduos andinos de Bolivia en base a grupos indicadores botanicos. Ecologia en Bolivia 32: 7-22. [Spanish]

30. Baeza, C. M., C. Marticorena&R. Rodriguez. 1999. Catalogue of the vascular flora of the Natural Monument Contulmo, Chile. Gayana Botanica 56: 125-135. [Spanish]

31. Baeza, M., E. Barrera, J. Flores, C. Ramirez&R. Rodriguez. 1998. Categorias de conservacion de Pteridophyta nativas de Chile. Bol. Mus. Nacion. Hist. Nat. (Chile) 47: 23-46. [Spanish]

32. Bambach, R. K., T. J. Algeo, J. Thorez&B. G. Witzke. 1999. Dynamics of Devonian paleogeography and paleoclimatic implications for expanding Archaeopteris forests. P. 13. In XVI International Botanical Congress - Abstracts.

33. Banks, J. A. 1999. Gametophyte development in ferns. Pp. 163-186. In R. L. Jones (Ed.). Annual Review of Plant Physiology&Plant Molecular Biology. Annual Reviews Inc., Palo Alto CA, USA. [Ceratopteris richardii]

34. Bao, W. M. 1999. The ultrastructural features of oogenesis in Dryopteris crassirhizoma. P. 337. In XVI International Botanical Congress - Abstracts.

35. Bao, W. M., Q. X. Wang&S. J. Dai. 1999. Morphology and ontogeny of the gametophyte in Cyrtogonellum inaequale Ching. Pp. 294-302. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

36. Bar, A.&A. Eschelmuller. 1999. Beitrag zur Kenntnis von Dryopteris affinis (Lowe) Fraser-Jenkins und von Bastarden mit D. filix-mas : 5 Teil. Mitt. Naturwiss. Arbeitskr. Volkshochsch. Kempten (Allgau) 36: 11-16. [German]

37. Barcelona, J. F.&M. G. Price. 1999. New Philippine Goniophlebium (Polypodiaceae: Pteridophyta). Fern Gazette 15: 261-264.

38. Barron, E. 1999. Paleobotanical study of the Vilella torrent vallesian (Neogene) outcrop (La Cerdana, Lerida, Spain). Taphonomical and paleoecological aspects. Boletin de la Real Sociedad Espanola de Historia Natural Seccion Geologica 94: 41-61. [Spanish]

39. Basu, S. N.&I. Gope. 1999. Occurrence of Goniophlebium amoenum (Wall. ex Mett.) J. Sm. in Bihar. Journal of the Bombay Natural History Society 96: 496.

40. Bauer, R., F. Oberwinkler&K. Vanky. 1999. Ustilaginomycetes on Osmunda. Mycologia 91: 669-675.

41. Bauer, R., K. Vanky, D. Begerow&F. Oberwinkler. 1999. Ustilaginomycetes on Selaginella. Mycologia 91: 475-484.

42. Bazos, I.&A. Yannitsaros. 1999. Pteridophyte flora of Lesvos (East Aegean Islands, Greece). Edinburgh Journal of Botany 56: 421-448.

43. Beckert, S., H. Muhle, D. Pruchner&V. Knoop. 1999. Phylogenies from the mitochondrial DNA in cryptogams. P. 471. In XVI International Botanical Congress - Abstracts.

44. Beentje, H. J.&C. M. Whitehouse. 1999. Azollaceae. 4p. In H. J. Beentje (Ed.). Flora of Tropical East Africa. A. A. Balkema International Publishers, Rotterdam, Netherlands.

45. Bennert, H. W., K. Horn, J. Benemann&T. Heiser. 1999. Die seltenen und gefahrdeten Farnpflanzen Deutschlands. Biologie, Verbreitung, Schutz. Landwirtschaftsverlag, Munster Germany. 381 pp. [German]

46. Bera, S.&N. Ghorai. 1999. On the interaction between greenhouse ornamental fern Platycerium alcicorne Desv. and its scale insect pest from Lloyd Botanic Garden, Darjeeling, West Bengal. Indian Fern Journal 16: 12-14.

47. Bera, S.&N. Ghorai. 1999. On the occurrence of mite gall caused by Trioza fletcheri (Eriophidae) on Angiopteris evecta Hoff. (Angiopteridaceae) from Andaman Islands. Indian Fern Journal 16: 15-18.

48. Bernabe, M. N., G. Williams-Linera&M. Palacios-Rios. 1999. Tree ferns in the interior and edge of a Mexican cloud forest: spore germination and sporophyte survival and establishment. Biotropica 31: 83-88. 49. Berndt, R. 1999. New reports of rust fungi from Baden-Wuerttemberg (SW Germany). Carolinea 5719: 57-64. [German; Dryopteris filix-mas]

50. Berthelin, M.&D. Pons. 1999. Significance of the characters shared between Bennettitales and Cycadales. Implications of the discovery of a new Cenomanian cycad from Anjou (France). Annales de Paleontologie 85: 227-239. [French]

51. Bertrand, A. M., M. A. Albuerne, H. Fernandez, A. Gonzalez&R. Sanchez-Tames. 1999. In vitro organogenesis of Polypodium cambricum. Plant Cell Tissue&Organ Culture 57: 65-69.

52. Beug, H.&G. Miehe. 1999. Vegetation history and human impact in the Eastern Central Himalaya (Langtang and Helambu, Nepal). Cramer in der Gebrueder Borntraeger Verlagsbuchhandlung, Berlin, Germany. i-iv; 1-98 pp. [Dissertation]

53. Bhandari, J. B.&R. Mukhopadhyay. 1999. Observations on morphology of scales of the Indian Vittarioid ferns. Science and Culture 65: 319-321.

54. Bhattacharya, G. 1999. Ethnobotanical wealth of the "Druk-yul" (Bhutan). Journal of Economic&Taxonomic Botany 23: 94-98.

55. Bhattacharya, M. K. 1999. Fern flora along Saung-Pindari trek in the Kumaon Himalaya. Journal of the Bombay Natural History Society 96: 444-446.

56. Bhuskute, S. M. 1999. Ophioglossum of Bhandara District, Maharashtra State, India. Indian Fern Journal 16: 51-54.

57. Bini, L. M., S. M. Thomaz, K. J. Murphy&F. M. Camargo Antonio. 1999. Aquatic macrophyte distribution in relation to water and sediment conditions in the Itaipu Reservoir, Brazil. Hydrobiologia 415: 147-154. [Salvinia auriculata]

58. Bir, S. S. 1999. Phytogeographical and evolutionary characteristics of the Sino-Himalayan Asplenioid ferns. Pp. 96-111. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

59. Bir, S. S. 1999. Publications on Pteridophytes by S. S. Bir. Indian Fern Journal 16: 164-172.

60. Blackburn, G. A.&J. I. Pitman. 1999. Biophysical controls on the directional spectral reflectance properties of bracken (Pteridium aquilinum) canopies: Results of a field experiment. International Journal of Remote Sensing 20: 2265-2282.

61. Blackwell, A., K. A. Lock, B. Marshall, B. Boag&S. C. Gordon. 1999. The spatial distribution of larvae of Culicoides impunctatus biting midges. Medical&Veterinary Entomology 13: 362-371. [Pteridium aquilinum]

62. Bociag, K. 1999. New sites for Isoetes echinospora (Isoetaceae) in the Pomeranian lakes (NW Poland). Fragmenta Floristica et Geobotanica 44: 423-427.

63. Boggs, K.&M. Shephard. 1999. Response of marine deltaic surfaces to major earthquake uplifts in southcentral Alaska. Wetlands 1: 13-27. [Equisetum fluviatile]

64. Booth, R. K.&F. J. Rich. 1999. Identification and paleoecological implications of a Late Pleistocene pteridophyte-dominated assemblage preserved in brown peat from St. Catherines Island, Georgia. Castanea 64: 120-129. [Dryopteris, Thelypteris, Woodwardia virginica]

65. Booth, R. K., F. J. Rich, G. A. Bishop&N. A. Brannen. 1999. Evolution of a freshwater barrier-island marsh in coastal Georgia, USA. Wetlands 3: 570-577. [Azolla]

66. Boudrie, M.&R. Deschatres. 1999. Contributions a l'inventaire de la Flore. Pteridophytes. Departement de l'Allier. Bull. Soc. bot. Centre-Ouest, n.s. 30: 202. [French]

67. Boudrie, M., J. L. Lamaison, H. Lassagne&E. Mosnier. 1999. Observations pteridologiques en region Auvergne. Rev. Sc. Nat d'Auvergne 63: 35-55. [French]

68. Braud, S., M. Charrier&G. Mourgaud. 1999. Les pteridophytes du Maine-et-Loire: inventaire et cartographie. ERICA (France) 12: 1-62. [French]

69. Brea, M.&A. E. Artabe. 1999. Triassic Apocalamitaceae (Sphenophyta) of the Paramillo Formation, Agua de la Zorra, Mendoza province, Argentina. Ameghiniana 36: 389-400. [Spanish]

70. Bremer, P.&A. Smit. 1999. Colonisation of polder woodland plantations with particular reference to the ferns. Fern Gazette 15: 289-308.

71. Breznovits, A. 1999. A gametophytic cell line of the fern Pteris vittata remains green in the dark and expresses chloroplast photogenes. Journal of Plant Physiology 155: 143-145.

72. Bringmann, G., C. Guenther&D. N. Jumbam. 1999. Isolation of 4-O-beta-D-glucopyranosylcaffeic acid and gallic acid from Cyathea dregei Kunze (Cyatheaceae). Pharmaceutical&Pharmacological Letters 9: 41-43.

73. Britton, D. M., D. F. Brunton&S. S. Talbot. 1999. Isoetes in Alaska and the Aleutians. American Fern Journal 89: 133-141.

74. Brown, R. C.&B. E. Lemmon. 1999. Cell division in pteridophytes. P. 233. In XVI International Botanical Congress - Abstracts.

75. Brownsey, P. 1999. Phytogeographic relationships of the New Zealand pteridophytes. P. 176. In XVI International Botanical Congress - Abstracts.

76. Brownsey, P. J. 1999. A new combination in Asplenium. New Zealand Journal of Botany 37: 369.

77. Brunton, D. F.&D. M. Britton. 1999. Rush Quillwort (Isoetes junciformis, sp. nov.), a new pteridophyte from southern Georgia. American Fern Journal 89: 187-197.

78. Brunton, D. F.&D. M. Britton. 1999. Maritime Quillwort, Isoetes maritima (Isoetaceae), in the Yukon Territory. Canadian Field-Naturalist 113: 641-645.

79. Brunton, D. F.&D. M. Britton. 1999. Isoetes x echtuckerii, hyb. nov., a new triploid quillwort from northeastern North America. Canadian Journal of Botany 77: 1662-1668.

80. Brunton, D. F.&D. M. Britton. 1999. Quillworts (Isoetes) of the Ottawa district. Trail and Landscape 33: 114-156.

81. Burrows, J. E. 1999. Ophioglossaceae: Pteridophyta. Bothalia 29: 109-112. [Ophioglossum richardsiae]

82. Burrows, J. E. 1999. Two new taxa of Ophioglossum from Tropical Africa. Bothalia 29: 109-112.

83. Bush, S. P., W. E. Kutz&J. M. Anderton. 1999. RAPD variation in temperate populations of the epiphytic orchid Epidendrum conopseum and the epiphytic fern Pleopeltis polypodioides. Selbyana 20: 120-124.

84. Bushnell, T. P. Jr. 1999. Molecular identification of endosymbionts present in the leaf cavities of Azolla caroliniana and Azolla mexicana. Rensselear Polytechnic Institute, Troy New York USA. 185 pp. [Dissertation]

85. Camacho, F. J. 1999. Belowground biology of Botrychium pumicola (Ophioglossaceae). Oregon State University, Corvallis, Oregon USA. 132 pp. [Dissertation]

86. Camloh, M. 1999. Spore age and sterilization affects germination and early gametophyte development of Platycerium bifurcatum. American Fern Journal 89: 124-132.

87. Camloh, M., B. Vilhar, J. Zel&M. Ravnikar. 1999. Jasmonic acid stimulates development of rhizoids and shoots in fern leaf culture. Journal of Plant Physiology 155: 798-801. [Platycerium bifurcatum]

88. Camloh, M., J. Zel&M. Ravnikar. 1999. Jasmonic acid affects morphogenesis in fern leaf culture. Biologia (Bratislava) 54 (Suppl. 7): 10. [Abstract]

89. Camoletto, P. R., P. Bensi&G. Dal Vesco. 1999. Contribution to the knowledge of the distribution and biology of Osmunda regalis L. var. regalis (Pteridophyta, Osmundales) in Piedmont. Museo Regionale di Scienze Naturali Bollettino (Turin) 17: 163-186. [Italian]

90. Cao, L.&X. F. Wang. 1999. Heterospores of the genus Ariadnaesporites (Salviniaceae) from the Late Cretaceous, Heilongjiang. Acta Micropalaeontologica Sinica 16: 50-53. [Chinese]

91. Caporn, S. J. M., A. L. Brooks, M. C. Press&J. A. Lee. 1999. Effects of long-term exposure to elevated CO2 and increased nutrient supply on bracken (Pteridium aquilinum). Functional Ecology 13 (Suppl. 1): 107-115.

92. Carlquist, S.&E. Schneider. 1999. SEM studies on vessels in ferns. 12. Marattiaceae, with comments on vessel patterns in eusporangiate ferns. American Journal of Botany 86: 457-464.

93. Carlquist, S., E. L. Schneider&K. F. Kenneally. 1999. SEM studies on vessels in ferns 8. Platyzoma. Australian Journal of Botany 47: 277-282.

94. Castillo, U. F., Y. Sakagami, M. Alonso-Amelot&M. Ojika. 1999. Pteridanoside, the first protoilludane sesquiterpene glucoside as a toxic component of the neotropical bracken fern Pteridium aquilinum var. caudatum. Tetrahedron 55: 12295-12300.

95. Caudales, R., E. Vega Hernandez, A. Sanchez-Perez&H. A. Liogier. 1999. Aquatic and wetland plants of Puerto Rico. I. Pteridophyta. Anales del Jardin Botanico de Madrid 57: 333-339.

96. Cesari, S., C. Parica, M. Remesal&F. Salani. 1999. Lower cretaceous flora from Byers Peninsula, South Shetland Islands, Antarctica. Ameghiniana 36: 3-22. [Spanish]

97. Ceynowa-Gieldon, M. 1999. Ophioglossum azoricum (Pteridophyta, Ophioglossaceae) from the Polish Baltic coast. Fragmenta Floristica et Geobotanica Series Polonica 6: 171-177. [Polish]

98. Chai, C., X. Mao, Y. Wang, J. Sun, Q. Qian, X. Hou, P. Zhang, C. Chen, W. Feng, W. Ding, X. Li, C. Li&X. Dai. 1999. Molecular activation analysis for chemical species studies. Fresenius Journal of Analytical Chemistry 363: 477-480.

99. Chandra, S.&P. B. Khare. 1999. Morphological diversity of Anemia rotundifolia Schrad. Phytomorphology 49: 185-192.

100. Chang, C. T., C. H. Lee, C. S. Chiou&F. T. Jen. 1999. Recovery assessment of lumber mill wastes: Composting product field test. Resources Conservation&Recycling 25: 133-150. [Asplenium nidus]

101. Chatterjee, A. 1999. Cellular, molecular, and electrophysiological changes in single cells of Ceratopteris during the period of polarity fixation by gravity. University of Texas, Austin, Texas USA. 114 pp. [Dissertation]

102. Chen, G. X.&J. Li. 1999. An analysis of the Pteridoflora of Wuling Mountains, China. Pp. 112-117. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

103. Chen, W. L., D. H. Guo, L. Shi&Z. Q. Zhu. 1999. In vitro germplasm preservation of ferns. Pp. 380-384. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

104. Chen, Z. Y.&S. Z. Huang. 1999. Research on conservation and propagation of rare and endangered Chinese pteridophytes. Pp. 385-387. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

105. Cheng, P. C., F. J. Kao&B. L. Lin. 1999. Multi-photon fluorescence microscopy. Proceedings on Optics and Photonics Taiwan 2: 1099-1101.

106. Ching, R. C. 1999. Phytogeography and floristics of Chinese pteridophytes. Pp. 118-132. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

107. Chinnery, L. E., M. Rawlins&G. K. Rogers. 1999. Biogeography of ferns in the Eastern Caribbean. P. 338. In XVI International Botanical Congress - Abstracts.

108. Chinnery, L. E.&G. K. Rogers. 1999. The breadfruit fern, Phlebodium aureum, in Barbados. P. 337. In XVI International Botanical Congress - Abstracts.

109. Chiou, W. L. 1999. Gametophyte morphology and antheridiogen of Sphaeropteris lepifera (J. Sm.) Tryon and Alsophila spinulosa (Hook.) Tryon (Cyatheaceae). P. 562. In XVI International Botanical Congress - Abstracts.

110. Chiou, W. L., D. R. Farrar&T. A. Ranker. 1999. Gametophyte growth and sexual reproduction of some epiphytic ferns. Pp. 303-315. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

111. Choi, Y. H., J. W. Kim&Y. H. Choi. 1999. A steroidal glycoside from Lepisorus ussuriensis. Phytochemistry (Oxford) 51: 453-456.

112. Chou, W. L. 1999 . Gametophyte diversity of homosporous ferns in Taiwan. Pp. 85-89. In C. H. Chou, G. R. Waller&C. Reinhardt (Eds.). Biodiversity and allelopathy: from organisms to ecosystems in the Pacific. Academia Sinica, Taipei.

113. Choudhury, M. D.&M. K. Bhattacharya. 1999. Contribution to the fern flora of Hailakandi district, Assam. Pp. 103-113. In G. D. Sharma &B. K. Dutta (Eds.). Recent Research in Science and Technology, Volume I. Assam University, Silchar, India.

114. Cieszko, J. 1999. Ecology of pteridophyte (Pteridophyta) populations. Wiadomosci Botaniczne 43: 7-17. [Polish]

115. Cobb, B. 1999 . A field guide to ferns and their related families: northeastern and central North America with a section on species also found in the British Isles and Western Europe. Houghton Mifflin, Boston. 281 pp.

116. Cochran, G., K. Renzaglia&W. C. Taylor. 1999. Ultrastructure of the spermatozoid of Isoetes. P. 562. In XVI International Botanical Congress - Abstracts.

117. Colli Aurea, M. T.&C. J. G. Perez Sonia. 1999. The effect of red light on the germination of a Brazilian pteridophyte. Brazilian Archives of Biology&Technology 42: 169-174. [Cheilanthes concolor]

118. Collinson, M. E. 1999. Phytogeographic distribution of Cainozoic ferns. P. 176. In XVI International Botanical Congress - Abstracts.

119. Conant, D. S.&D. B. Stein. 1999. Floristic relationships in southeast Asia based on DNA and morphological data from Cyathea (Alsophila), with emphasis on diversification of the genus on Mount Kinabalu and in New Guinea. P. 73. In XVI International Botanical Congress - Abstracts.

120. Cook, C. D. K. 1999. The number and kinds of embryo-bearing plants which have become aquatic: A survey. Perspectives in Plant Ecology, Evolution&Systematics 2: 79-102.

121. Cook, M. E.&W. E. Friedman. 1999. Tracheid structure in a primitive extant plant provides an evolutionary link to earliest fossil tracheids. P. 40. In XVI International Botanical Congress - Abstracts.

122. Correa, M. N. 1999 . Flora Patagonica: part 1. Introduccion, clave general de familias, Pteridophyta y Gymnospermae. Instituto Nacional de Tecnologia Agropecuaria, Buenos Aires. 391 pp.

123. Cortella, A. R.&M. L. Pochettino. 1999. Plants employed for hypotensive infusions in urban areas of Argentina. Pharmaceutical Biology 37: 97-104. [Equisetum]

124. Costa, M. L., M. Conceicao Santos&F. Carrapico. 1999. Biomass characterization of Azolla filiculoides grown in natural ecosystems and wastewater. Hydrobiologia 415: 323-327.

125. Cother, E. J. 1999. Host range studies of the mycoherbistat fungus Rhynchosporium alismatis. Australasian Plant Pathology 28: 149-155. [Marsilea]

126. Cranfill, R. 1999. Phylogenetic analysis of the Blechnaceae. P. 92. In XVI International Botanical Congress - Abstracts.

127. Cras, M. C.&R. McConchie. 1999. Properties of soils in which Sticherus flabellatus naturally occurs. Hortscience 34: 516. [Abstract]

128. Cressler, W. L.&E. B. Daeschler. 1999. Site analysis of an Archaeopteris-dominated community, Red Hill, Pennsylvania. P. 13. In XVI International Botanical Congress - Abstracts.

129. Crouch, N.&J. Burrows. 1999. Adiantum reniforme: lost or never found- Veld Flora (Kirstenbosch) 85: 168-169. 130. D'Rozario, A., S. Bera&R. Mukhopadhyay. 1999. Occurrence of Aphlebiae-like structures in Dennstaedtia scabra (Wall. ex Hook.) Moore from Sikkim. Phytomorphology 49: 193-195.

131. Dagar, H. S.&J. C. Dagar. 1999. Plant folk medicines for gynaecological, urino-genital and other related problems among aborigines of Andaman&Nicobar Islands. Journal of Economic&Taxonomic Botany 23: 561-567.

132. Daniela, D. 1998. Consideration upon the mature stomatal complex and the stomatogenesis of the fern species in the Romanian flora. Acta Horti Bot. Bucurest 27: 5-15.

133. Dassler, C.&D. Farrar. 1999. Significance of gametophyte form in long-distance colonization of islands by tropical, epiphytic ferns. P. 176. In XVI International Botanical Congress - Abstracts.

134. de la Cruz Linares, H. E. 1998. Ecology and population genetics of Cyathea brooksii Maxon (Cyatheaceae). University of Puerto Rico, Mayaguez Puerto Rico. 122 pp. [Thesis]

135. de la Sota, E. R. 1999. On the nature of the "submerged organ" in the fern genus Salvinia. P. 22. In XVI International Botanical Congress - Abstracts.

136. De Paula Filippini, E. C., S. Regina Duz&A. M. Randi. 1999. Light and storage on the germination of spores of Dicksonia sellowiana (Presl.) Hook., Dicksoniaceae. Revista Brasileira de Botanica 22: 21-26.

137. de Sequeira, M. M., N. Sousa, I. Arriegas&L. Carvalho. 1999. Reference studies for the habitat recover of Marsilea quadrifolia L. (Corgo river, Regua, Portugal). 1. List of flora, ecology and cartography. Revista de Biologia (Lisbon) 17: 59-71. [Portuguese]

138. de Silva Sylvestre, L. 1999. Pteridophytes of the Atlantic rain forest in the state of Rio de Janeiro, Brazil. P. 335. In XVI International Botanical Congress - Abstracts.

139. Degen, T., H. R. Buser&E. Stadler. 1999. Patterns of oviposition stimulants for carrot fly in leaves of various host plants. Journal of Chemical Ecology 25: 67-87. [Athyrium filix-femina]

140. Demchik, M. C.&W. E. Sharpe. 1999. Foliar and root chemistry response of hay-scented fern to liming and fertilization. Northern Journal of Applied Forestry 16: 33-35. [Dennstaedtia punctilobula]

141. Demchik, M. C.&W. E. Sharpe. 1999. Response of planted northern red oak seedlings to selected site treatments. Northern Journal of Applied Forestry 16: 197-199. [Dennstaedtia punctilobula]

142. Dement'eva, S. M., A. S. Sorokin, L. B. Tomashevskaya, A. V. Tyusov&E. S. Pushai. 1999. Two new plant species for Tver' Region. Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii 104: 47. [Russian; Polypodium vulgare]

143. Dempster, E. L., K. V. Pryor, D. Francis, J. E. Young&H. J. Rogers. 1999. Rapid DNA extraction from ferns for PCR-based analyses. Biotechniques 27: 66-68.

144. Deng, S. H.&F. Chen. 1999. Characteristics and evolution of the Mesozoic Filicopsida in the north of China. Pp. 421-431. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

145. di Pasquo, M.&C. L. Azcuy. 1999. Paleoenvironmental interpretation of the Mandiyuti group (Upper Carboniferous), Salta Province, Argentina. Palynologic, sedimentologic and taphonomic evidences. Ameghiniana 36: 453-463. [Spanish] 146. Dixit, R. D.&T. M. Hynniewta. 1999. Recollection of endemic fern Vittaria wattii Dixit et Nair from Nagaland, India. Journal of Economic&Taxonomic Botany 23: 679-680.

147. Dolling, A. 1999. The vegetative spread of Pteridium aquilinum in a hemiboreal forest: Invasion or revegetation- Forest Ecology&Management 124: 177-184.

148. Dong, Y. 1999. Culture and propagation of Isoetes japonica. Pp. 388-389. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

149. Drok, W. J. A.&E. J. Weeda. 1999. Marsilea quadrifolia L. new to the Netherlands. Gorteria 25: 89-103. [Netherlands]

150. DuBuisson, J. Y., A. R. Smith&Pryer, K. M. 1999. Phylogeny of filmy ferns (Hymenophyllaceae). P. 91. In XVI International Botanical Congress - Abstracts.

151. Duff, R. J.&D. L. Nickrent. 1999. Phylogenetic relationships of land plants using mitochondrial small-subunit rDNA sequences. American Journal of Botany 86: 372-386.

152. Duffy, S., S. L. Simon&F. W. Whicker. 1999. 137Cs contamination of plants used for traditional medicine and implications for human exposure. Journal of Environmental Radioactivity 46: 27-44. [Polypodium scolopendria]

153. Dutartre, G., M. Boudrie&R. Deschatres. 1999. Redecouverte de Dryopteris pallida (Bory) Maire&Petitmengin subsp. pallida (Dryopteridaceae, Pteridophyta) en Corse. J. Bot. Soc. bot. France 11: 45-54.

154. Earp, C. 1999. Early Devonian fossils from Eglinton Road and Rail Cutting, Alexandra, central Victoria. Victorian Naturalist (South Yarra) 116: 181-186.

155. Ekman, S. R. 1999. Early Pleistocene pollen biostratigraphy in the central North Sea. Review of Palaeobotany&Palynology 105: 171-182.

156. Elliot, M. B. 1999. Modern pollen-vegetation relationships in Northland, New Zealand. New Zealand Journal of Botany 37: 131-148. [Pteridium esculentum]

157. Enright, N. J. 1999. Litterfall dynamics in a mixed conifer-angiosperm forest in northern New Zealand. Journal of Biogeography 26: 149-157. [Cyathea dealbata]

158. Eriksson, P. G.&J. L. Andersson. 1999. Potential nitrification and cation exchange on litter of emergent, freshwater macrophytes. Freshwater Biology 42: 479-486. [Equisetum fluviatile]

159. Estime, L. 1999. A comparative study of polychlorinated biphenyl (PCB) metabolism by different plant species in vitro. Howard University, Washington, D. C. 93 pp. [Dissertation; Nephrolepis exaltata]

160. Eyini, M., K. Sujanandini, C. Pothiraj, M. Jayakumar&B. S. Kil. 1999. Differential response of Azolla microphylla Kaulf. and Azolla filiculoides Lam. to sodium fluoride. Journal of Plant Biology 42: 299-301.

161. Fang, Z. D. 1999. Studies of the floristic phytogeography of pteridophytes in Diqing Tibetan Autonomous Prefecture, NW. Yunnan. Pp. 133-178. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

162. Farrar, D. R., C. L. Dassler&W. L. Chiou. 1999. Homologies in gametophyte structure. P. 233. In XVI International Botanical Congress - Abstracts.

163. Fasakin, E. A. 1999. Nutrient quality of leaf protein concentrates produced from water fern (Azolla africana Desv) and duckweed (Spirodela polyrrhiza L. Schleiden). Bioresource Technology 69: 185-187.

164. Fennane, M., M. Ibn Tattou, J. Mathez, A. Ouyahya&J. El Oualidi. 1999 . Flore pratique du Maroc: manuel de determination des plantes vasculaires. Volume 1. Pteridophyta, Gymnospermae, Angiospermae (Lauraceae-Neuradaceae). Institut Scientifique, Rabat, Morocco. xiv, 558 pp.

165. Fensome, R.&J. Skog. 1999. Nomenclatural Notes: Report of the Nomenclature Session. Palynos 22: 6-7.

166. Ferguson, D. E. 1999. Effects of pocket gophers, bracken fern, and western coneflower on planted conifers in northern Idaho: An update and two more species. New Forests 18: 199-217. [Pteridium aquilinum]

167. Fernandez, H., A. M. Bertrand&R. Sanchez-Tames. 1999. Biological and nutritional aspects involved in fern multiplication. Plant Cell Tissue&Organ Culture 56: 211-214. [Asplenium nidus, Dryopteris affinis ssp. affinis, Osmunda regalis, Pteris ensiformis, Woodwardia virginica]

168. Fernandez, H., A. M. Bertrand, M. I. Sierra&R. Sanchez-Tames. 1999. An apolar GA-like compound responsible for the antheridiogen activity in Blechnum spicant. Plant Growth Regulation 28: 143-144.

169. Field, M. H. 1999. Variations in Azolla section Azolla megaspore apparatus and their implications for palaeotaxonomy and European Pleistocene biostratigraphy. Review of Palaeobotany&Palynology 105: 85-92.

170. Fischer, U. 1999. Vegetation growth in the valley mire natural reserve Peenewiesen bei Guetzkow (Mecklenburg, Western Pomerania). Feddes Repertorium 110: 287-324. [German]

171. Fjeldsa, J., M. Kessler&G. Swanson. 1999. Cocopata and Saila Pata: People and biodiversity in a Bolivian montane valley. DIVA Technical Report 7, Ronde, Denmark. 175.

172. Fogarty, R. V., P. Dostalek, M. Patzak, J. Votruba, E. Tel-Or&J. M. Tobin. 1999. Metal removal by immobilised and non-immobilised Azolla filiculoides. Biotechnology Techniques 13: 533-538.

173. Forchhammer, N. C. 1999. Production potential of aquatic plants in systems mixing floating and submerged macrophytes. Freshwater Biology 41: 183-191. [Azolla filiculoides]

174. Franks, P. J.&G. D. Farquhar. 1999. A relationship between humidity response, growth form and photosynthetic operating point in C3 plants. Plant, Cell&Environment 22: 1337-1349. [Osmunda regalis]

175. Fredericksen, T. S., B. D. Ross, W. Hoffman, M. L. Morrison, J. Beyea, B. N. Johnson, M. B. Lester&E. Ross. 1999. Short-term understory plant community responses to timber-harvesting intensity on non-industrial private forestlands in Pennsylvania. Forest Ecology&Management 11: 129-139.

176. French, C., R. J. Murphy&M. G. Atkinson. 1999 . Flora of Cornwall: atlas of the flowering plants and ferns of Cornwall, with notes on some species recorded on the Isles of Scilly. Wheal Seaton Press, Cambourne, Cornwall, UK. 400 pp. 177. Funston, A. M. 1999 . Pteridophyte checklist for China. Missouri Botanical Garden, St. Louis, Missouri. 411 pp.

178. Gallardo, M. T., J. R. Ascher, M. J. Collier, B. B. Martin&D. F. Martin. 1999. Effect of cattail (Typha domingensis) extracts, leachates, and selected phenolic compounds on rates of oxygen production by salvinia (Salvinia minima). Journal of Aquatic Plant Management 37: 80-82.

179. Galtier, J. 1999 . Contrasting diversity of branching patterns in early ferns and early seed plants. Pp. 51-64. In M. H. Kurmann &A. R. Hemsley (Eds.). The evolution of plant architecture. Royal Botanic Gardens, Kew, UK, Kew.

180. Galtier, J.&V. Daviero. 1999. Structure and development of Sphenophyllum oblongifolium from the Upper Carboniferous of France. International Journal of Plant Sciences 160: 1021-1033.

181. Galtier, J., B. Meyer-Berthaud, N. P. Rowe, S. E. Scheckler&T. Speck. 1999. Biomechanical consequences of the progymnosperm vascular cambium. P. 13. In XVI International Botanical Congress - Abstracts.

182. Gandolfo, M. A. 1999. A cladistic analysis of Gleicheniaceaous and Schizaeaceous fossils and their relatives. P. 91. In XVI International Botanical Congress - Abstracts.

183. Garbacki, N., L. Ector, I. Kostikov&L. Hoffmann. 1999. Contribution to the study of the flora of caves in Belgium. Belgian Journal of Botany 132: 43-76. [French]

184. Gemmill, C. E. C.&T. A. Ranker. 1999. Hawaiian perspectives on the origin and diversification of pteridophyte species. P. 336. In XVI International Botanical Congress - Abstracts.

185. Gensel, P. G.&C. M. Berry. 1999. Early Paleozoic Lycopsida: current studies tracing the establishment of the group. P. 119. In XVI International Botanical Congress - Abstracts.

186. George, L. O.&F. A. Bazzaz. 1999. The fern understory as an ecological filter: Emergence and establishment of canopy-tree seedlings. Ecology 80: 833-845. [Dennstaedtia punctilobula]

187. George, L. O.&F. A. Bazzaz. 1999. The fern understory as an ecological filter: Growth and survival of canopy-tree seedlings. Ecology 80: 846-856. [Dennstaedtia punctilobula]

188. Gerken, R. 1999. Asplenium trichomanes subspecies pachyrachis (Christ) Lovis and Reichstein first discovered in Northern Germany (Goslar, Harz Mountains). Floristische Rundbriefe 33: 17-22. [German]

189. Gerrienne, P., M. Fairon-Demaret&J. Galtier. 1999. A Namurian A (Silesian) permineralized flora from the Carriere du Lion at Engihoul (Belgium). Review of Palaeobotany&Palynology 107: 1-15.

190. Gevrek, M. N. 1999. The adaptability of Azolla mexicana in the Ege region of Turkey. International Rice Research Notes 24: 31.

191. Gibbs, J. N. 1999. Thelypteris palustris (marsh fern), a new site in Cornwall. BSBI News 82: 31.

192. Gilman, A. V. 1999. The vascular flora of Caledonia county, Vermont. Rhodora 101: 360-418.

193. Giudice, G. E. 1999. Revision of the Argentine species of the genus Adiantum L. (Pteridaceae, Pteridophyta). Darwiniana (San Isidro) 37: 279-300. [Spanish]

194. Gjuo, Q. M., H. Gao, J. Y. Zheng, F. Q. Zhou&J. X. Li. 1999. Studies on the morphology and anatomy of Dryopteris Adanson from Shangdong Province. Pp. 316-327. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

195. Gordon, C., S. J. Woodin, I. J. Alexander&C. E. Mullins. 1999. Effects of increased temperature, drought and nitrogen supply on two upland perennials of contrasting functional type: Calluna vulgaris and Pteridium aquilinum. New Phytologist 142: 243-258.

196. Gordon, C., S. J. Woodin, C. E. Mullins&I. J. Alexander. 1999. Effects of environmental change, including drought, on water use by competing Calluna vulgaris (heather) and Pteridium aquilinum (bracken). Functional Ecology 13 (Suppl. 1): 96-106.

197. Gorecka-Nowak, A. 1999. Miospore associations as indicators of the origin of coal seams in the Intrasudetic Basin (southwest Poland). Bollettino della Societa Paleontologica Italiana 38(2-3): 167-175.

198. Gorzalczany, S., A. Rojo, R. Rondina, S. Debenedetti&C. Acevedo. 1999. Oral acute toxicity assay of Argentine medicinal plants. Acta Farmaceutica Bonaerense 18: 221-224. [Spanish; Equisetum giganteum]

199. Goswami, P. H. 1999. Molecular genetics of X chromosomal evolution in Isoetes. Cytogenetics&Cell Genetics 85: 180.

200. Gounalan, S., R. Somvanshi, M. Kataria, G. S. Bisht, B. L. Smith&D. R. Lauren. 1999. Effect of bracken (Pteridium aquilinum) and dryopteris (Dryopteris juxtaposita) fern toxicity in laboratory rabbits. Indian Journal of Experimental Biology 37: 980-985.

201. Gounalan, S., R. Somvanshi, R. Kumar, S. Dash&V. Devi. 1999. Clinico-pathological effects of bracken fern (Pteridium aquilinum) feeding in laboratory rats. Indian Journal of Animal Sciences 69: 385-388.

202. Gradstein, R.&B. van Zenten. 1999. High-altitude dispersal of spores an experimental approach. P. 176. In XVI International Botanical Congress - Abstracts.

203. Graham, A. 1999. Studies in Neotropical paleobotany. XIII. An oligo-miocene palynoflora from Simojovel (Chiapas, Mexico). American Journal of Botany 86: 17-31.

204. Grant, D. R. 1999. Botanical report for 1998: flowering plants and ferns. Naturalist (UK) 124: 131-134.

205. Grauvogel-Stamm, L.&S. R. Ash. 1999. "Lycostrobus" chinleana, an Equisetalean cone from the Upper Triassic of the southwestern United States and its phylogenetic implications. American Journal of Botany 86: 1391-1405.

206. Grauvogel-Stamm, L.&B. Lugardon. 1999. The triassic Lycopsids. P. 120. In XVI International Botanical Congress - Abstracts.

207. Greb, S. F., C. F. Eble, D. R. J. Chesnut Jr., T. L. Phillips&J. C. Hower. 1999. An in situ occurrence of coal balls in the Amburgy coal bed, Pikeville Formation (Duckmantian), central Appalachian Basin, USA. Palaios 14: 432-450.

208. Greer, G. K.&B. C. McCarthy. 1999. Gametophytic plasticity among four species of ferns with contrasting ecological distributions. International Journal of Plant Sciences 160(5). Sept., 19: 879-886. [Asplenium platyneuron, A. rhizophyllum, Diplazium pycnocarpon, Polystichum acrostichoides]

209. Grierson, D. S.&A. J. Afolayan. 1999. Antibacterial activity of some indigenous plants used for the treatment of wounds in the Eastern Cape, South Africa. Journal of Ethnopharmacology 66: 103-106. [Cheilanthes viridis, Polystichum pungens]

210. Grubov, V. I. 1999. Plants of central Asia: plant collections from China and Mongolia. Volume 1. Introduction, ferns, bibliography. Science Publishers, 1999, Enfield, New Hampshire. vii, 188 pp.

211. Gu, J. H. 1999. Unrecorded ferns from Shanghai. Acta Mus. Hist. Nat. Sin. 17: 45-46.

212. Guimaraes, T. D. B.&G. M. Felippe. 1999. The survival and establishment potential of spores of Cyathea delgadii Sternb. in soils from Itirapina and Moji Guacu (SP), Brazil. Revista Brasileira de Botanica 22: 385-390.

213. Guntveit, S. 1999. New localities of Asplenium scolopendrium and A. marinum in Oygarden and Fjell municipalities, Hordaland county, W. Norway. Blyttia 57: 88-93. [Norwegian]

214. Guo, Q. M., H. Gao, J. Y. Zheng, F. Q. Zhou&J. X. Li. 1999. Studies on the morphology and anatomy of Dryopteris Adanson from Shangdong Province. Pp. 316-327. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the cetenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

215. Hagemann, W. 1999. Towards an organismic concept of land plants: The marginal blastozone and the development of the vegetation body of selected frondose gametophytes of liverworts and ferns. Plant Systematics&Evolution 216: 81-133. [Dryopteris filix-mas, Vittaria lineata, Stenochlaena tenuifolia]

216. Hagen, M. A., J. A. Vicente Orellana&A. Galan de Mera. 1999. A new record of Lycopodiella inundata (L.) J. Holub (Lycopodiaceae) in the Sistema Central of Spain. Stud. Bot. (Salamanca) 17: 121-122.

217. Han, J. Y.&Y. Dong. 1999. Ex situ conservation of Alsophila spinulosa. Pp. 390-392. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

218. Hansen, K., D. H. Pfister&D. S. Hibbett. 1999. Phylogenetic relationships among species of Phillipsia inferred from molecular and morphological data. Mycologia 91: 299-314.

219. Harrison, M. J. 1999. Molecular and cellular aspects of the arbuscular mycorrhizal symbiosis. Pp. 361-389. In R. L. Jones (Eds.). Annual Review of Plant Physiology&Plant Molecular Biology. Annual Reviews Inc., Palo Alto CA USA.

220. Hart, P. E.&S. M. Wolniak. 1999. Molecular cloning of a centrin homolog from Marsilea vestita and evidence for its translational control during spermiogenesis. Biochemistry&Cell Biology 77: 101-108.

221. Hasebe, M. 1999. Evolution of reproductive organs in land plants. Journal of Plant Research 112: 463-474.

222. Hass, B., K. Evers, C. K. Wen, R. Smith&A. Banks. 1999. Analysis of an antheridiogen-induced gene, ANI1 in Ceratopteris richardii. P. 76. In XVI International Botanical Congress - Abstracts.

223. Hauenstein, E., M. Gonzalez, L. Leiva&L. Falcon. 1999. Macrophyte flora and bioindicators of the Budi lake (IX Region, Chile). Gayana Botanica 56: 53-62. [Spanish]

224. Hauk, W. D.&C. H. Haufler. 1999. Isozyme variability among cryptic species of Botrychium subgenus Botrychium (Ophioglossaceae). American Journal of Botany 86: 614-633.

225. Heenan, P. B., P. J. de Lange, D. S. Glenny, I. Breitwieser, P. J. Brownsey&C. C. Ogle. 1999. Checklist of dicotyledons, gymnosperms, and pteridophytes naturalised or casual in New Zealand: Additional records 1997-1998. New Zealand Journal of Botany 37: 629-642.

226. Hegde, D. M., B. S. Dwivedi&S. N. S. Babu. 1999. Biofertilizers for cereal production in India - A review. Indian Journal of Agricultural Sciences 69: 73-83. [Azolla]

227. Helme, N. A.&P. J. Rakotomalaza. 1999. An overview of the botanical communities of the Reserve Naturelle Integrale d'Andohahela, Madagascar. Fieldiana Zoology 94: 11-23.

228. Hemp, A. 1999. New fern records for Kilimanjaro. J. E. Afr. Nat. Hist. 86: 37-42.

229. Herendeen, P. S., S. Magallon-Puebla, R. Lupia, P. R. Crane&J. Kobylinska. 1999. A preliminary conspectus of the Allon flora from the Late Cretaceous (late Santonian) of central Georgia, U.S.A. Annals of the Missouri Botanical Garden 86: 407-471.

230. Herr, J. M. Jr. 1999. On the origin of leaves : The telome theory revised. Phytomorphology 49: 111-134. [Woodwardia virginica]

231. Hickey, R. J. 1999. A perspective on the modern lycopsids. P. 120. In XVI International Botanical Congress - Abstracts.

232. Hickock, L. G.&T. R. Warne. 1999. Chemical attraction: C-fern sperm chemotaxis. Supplement to C-Fern Manual. Carolina Biological Supply Company, Burlington, North Carolina USA. [Ceratopteris]

233. Hietz, P., W. Wanek&M. Popp. 1999. Stable isotopic composition of carbon and nitrogen and nitrogen content in vascular epiphytes along an altitudinal transect. Plant, Cell&Environment 22: 1435-1443.

234. Hildebrand, T., C. H. Haufler, M. Gabel&T. A. Ranker. 1999. Population differentiation using two nuclear marker systems in Lycopodiaceae. P. 337. In XVI International Botanical Congress - Abstracts.

235. Hill, J. P. 1999. Alternation of generations and the evolution of sporophyte gender. P. 232. In XVI International Botanical Congress - Abstracts.

236. Hill, M. P.&C. J. Cilliers. 1999. Azolla filiculoides Lamarck (Pteridophyta: Azollaceae), its status in South Africa and control. Hydrobiologia 415: 203-206.

237. Hill, S. A.&S. E. Scheckler. 1999. Spore dispersal mechanisms and strobilus biology of Archaeopteris. P. 14. In XVI International Botanical Congress - Abstracts.

238. Hilton, J. 1999. A Late Devonian plant assemblage from the Avon Gorge, west England: Taxonomic, phylogenetic and stratigraphic implications. Botanical Journal of the Linnean Society 129: 1-54. 239. Hiraga, Y., M. Kurokawa, J. R. Guo&T. Suga. 1999. Ion-transport activity of phenylpentanoic acids occurring in the roots of Athyrium yokoscense. Bioscience Biotechnology&Biochemistry 63: 958-960.

240. Holtum, J. A. M.&K. Winter. 1999. Degrees of crassulacean acid metabolism in tropical epiphytic and lithophytic ferns. Australian Journal of Plant Physiology 26: 749-757.

241. Hong, F. S., Z. G. Wei, Y. Tao, S. K. Wan, Y. T. Yang, X. D. Cao&G. W. Zhao. 1999. Distribution of rare earth elements and structure characterization of chlorophyll-lanthanum in a natural plant fern Dicranopteris dichotoma. Acta Botanica Sinica 41: 851-854. [Chinese]

242. Hoot, S. B.&W. C. Taylor. 1999. Relationships of basic diploid and allotetraploid Isoetes species from nuclear ITS and leafy sequences. P. 120. In XVI International Botanical Congress - Abstracts.

243. Horn, K., W. Diewald&R. Hofmann. 1999. Neufunde bemerkenswerter Farnpflanzen (Pteridophyta) im Nationalpark Bayerischer Wald und angrenzenden Gebieten. Hoppea, Denkschriften der Regensburgischen Botanischen Gesellschaft 60: 371-391. [Asplenium viride, Botrychium lunaria, B. multifidum, Cryptogramma crispa, Diphasiastrum alpinum, D. complanatum, D. issleri, D. oellgaardii, D. tristachyum, D. zeilleri, Dryopteris affinis, D. expansa, D. remota, Polystichum aculeatum, P. braunii]

244. Horn, K.&F. Paetzold. 1999. Recent population size and endangerment of the Spring Quillwort (Isoetes echinospora Durieu) in Baden-Wuerttemberg (south-western Germany). Carolinea 5719: 43-56. [German]

245. Horn, K.&M. Schmid. 1999. Ein Neufund der Astigen Mondraute (Botrychium matricariifolium (Retz.) A. Braun) im ehemaligen Braunkohletagebaugebiet Spreetal bei Hoyerswerda. Sachsische Floristische Mitteilungen 5: 3-7. [Ophioglossum vulgatum]

246. Horrocks, J. R. 1999. Athyrium filix-femina. Hardy Fern Foundation 9: 6-7.

247. Horrocks, J. R. 1999. Polystichum makinoi. Hardy Fern Foundation 9: 27, 40.

248. Horrocks, J. R. 1999. Asplenium platyneuron. Hardy Fern Foundation 9: 44-45.

249. Horrocks, J. R. 1999. Pellaea atropurpurea. Hardy Fern Foundation 9: 72-73.

250. Hoshizaki, B. J. 1999. New fern introductions, Pteris actinopteroides. Fiddlehead Forum 26: 11-12.

251. Hoshizaki, B. J. 1999. Fragrant fern, a versatile fern. Los Angeles Internation Fern Society 26: 30-33.

252. Hoshizaki, B. J.&K. A. Wilson. 1999. The cultivated species of the fern genus Dryopteris in the United States. American Fern Journal 89: 1-98.

253. Hotanen, J. P., H. Nousiainen&P. Paalamo. 1999. Vegetation succession and diversity on Teuravuoma experimental drainage area in northern Finland. Suo (Helsinki) 50: 55-82. [Equisetum sylvaticum]

254. Hseih, Y. T. 1999. Studies on the Pteridoflora of Shaanxi Province. Pp. 183-188. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

255. Hsieh, Y. T. 1999. Geographical distribution of Hippochaete hyemalis (L.) Borner in China. Pp. 179-182. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

256. Huang, X. C., Z. C. Zhou, J. F. Wei&J. Zhang. 1999. Folk medicinal pteridophytes of Zhuang Nationality in Guangxi, China. Pp. 393-396. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

257. Hunt, J. S., K. M. Pryer, A. Vaghani, A. R. Smith&P. G. Wolf. 1999. "Fern DNA database": using Filemaker Pro to coordinate DNA-availability, DNA-sequence data, voucher and source information for large-scale and collaborative phylogenetic studies. P. 720. In XVI International Botanical Congress - Abstracts.

258. Hunt, M. A.&S. L. Hodson. 1999. Accurate area determination of complex leaves using digital image analysis. Australian Journal of Plant Physiology 26: 767-772. [Dicksonia antarctica]

259. Hurnik, S.&Z. Kvacek. 1999. Satellite basin of Skyrice near Most and its fossil flora (Miocene). Acta Universitatis Carolinae Geologica 43: 643-656.

260. Ide, J. M. 1999. The ferns of the Baden-Powell Desk. Pteridologist 3: 79-86.

261. Iijima, N., T. Sato&A. Hase. 1999. Pteridophyte flora around Otobetown, SW Hoddaido concerning to habitats of floristic similarity. Sheibutsu Kyozai 34: 21-30.

262. Imperato, F.&A. Telesca. 1999. 3-C-(6'''-O-acetyl-beta-cellobiosyl) apigenin, a new flavonoid from Pteris vittata. American Fern Journal 89: 217-220.

263. Inoue, T., M. Gotowda, H. Sugawara, T. Kohzuma, F. Yoshizaki, Y. Sugimura&Y. Kai. 1999. Structure comparison between oxidized and reduced plastocyanin from a fern, Dryopteris crassirhizoma. Biochemistry 38: 13853-13861.

264. Irudayaraj, V. 1999. Selaginella wightii Hierron. (Selaginellaceae: Pteridophyta); a new record for the Nilgiris. Indian Fern Journal 16: 28-29.

265. Irudayaraj, V. 1999. Studies on intraspecific variation in south Indian ferns VIII. An altitudinal ecotype of Lindsaea heterophylla Dryander. Indian Fern Journal 16: 35-37.

266. Irudayaraj, V. 1999. Lectotypification of the hybrid Athyrium X keralensis Manickam&Irudayaraj (Athyriaceae, Pteridophyta). Journal of the Bombay Natural History Society 96: 174.

267. Irudayaraj, V. 1999. Fern-insect interaction. Zoos' Print 14: 35.

268. Irudayaraj, V.&H. Jeyanath. 1999. Diurnal fluctuation of acids and starch in a succulent epiphytic medicinal fern, Microsorum punctatum (L.) Copel. (Polypodiaceae: Pteridophyta). Indian Fern Journal 16: 44-47.

269. Islam, M. 1999. A study on the certain aquatic macrophytes of lentic habitat of Dibrugarh district, Assam. Advances in Plant Sciences 12: 35-40.

270. Jacono, C. C. 1999. Salvinia molesta (Salviniaceae), new to Texas and Louisiana. Sida Contributions to Botany 18: 927-928.

271. Jain, A. K.&M. Gupta. 1999. Impact of environmental factors on pollen dispersal in air at different sites in Gwalior (M.P.). Bionature 2: 75-82. 272. Jayakumar, M., M. Eyini, P. Selvinthangadurai, K. Lingakumar, A. Premkumar&G. Kulandaivelu. 1999. Changes in pigment composition and photosynthetic activity of aquatic fern (Azolla microphylla Kaulf.) exposed to low doses of UV-C (254 nm) radiation. Photosynthetica (Prague) 37: 33-38.

273. Jetter, R.&M. Riederer. 1999. Long-chain alkanediols, ketoaldehydes, ketoalcohols and ketoalkyl esters in the cuticular waxes of Osmunda regalis fronds. Phytochemistry (Oxford) 52: 907-915.

274. Jiang, M. Q. 1999. Ecology and geographical distribution of the pteridophytes in Huangshan, Anhui Province. Pp. 189-198. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

275. Jiang, M. Q. 1999. Floristic analysis of the pteridophytes from Anhui Province. Pp. 199-203. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

276. Jiao, Y., L. Chen&S. Song. 1999. The leaf epidermis of Helminthostachyaceae and Ophioglossaceae. Bull. Bot. Res. (China) 19: 132-135.

277. Jiao, Y., Z. H. Liu&S. Y. Song. 1999. Characteristics of the cuticle of Marattiales. Acta Botanica Yunnanica 21: 329-332. [Chinese; Angiopteris caudatiformis, Archangiopteris henryi, Christensenia aesculifolia, Marattia pellucida]

278. Jin, Y. X.&M. B. Deng. 1999. A preliminary analysis of the Pteridoflora of Jiangsu, Zhejiang and Anhui Provinces. Pp. 204-210. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

279. Johnson, T. H. O., K. S. Renzaglia&D. P. Whittier. 1999. The spermatozoid of Psilotum nudum. P. 562. In XVI International Botanical Congress - Abstracts.

280. Johnson-Groh, C., D. Farrar, D. Friedrick, L. Schoessler&C. Riedel. 1999. Underground distribution and abundance of Botrychium gametophytes and juvenile sporophytes. P. 335. In XVI International Botanical Congress - Abstracts.

281. Jorge Luzia, I. F., E. L. Chicourel, A. S. Graciano Rejane&R. Vicente. 1999. Morpho-histologycal characterization to "cavalinha" (Equisetum giganteum L). Revista de Ciencias Farmaceuticas 20: 51-57. [Portuguese]

282. Jutila, H. 1999. Effect of grazing on the vegetation of shore meadows along the Bothnian Sea, Finland. Plant Ecology 140: 77-88.

283. Kadota, A.&M. Wada. 1999. Red light-aphototropic (rap) mutants lack red light-induced chloroplast relocation movement in the fern Adiantum capillus-veneris. Plant&Cell Physiology 40: 238-247.

284. Kadota, A., N. Yoshizaki&M. Wada. 1999. Cytoskeletal changes during resumption of tip growth in nongrowing protonemal cells of the fern Adiantum capillus-veneris L. Protoplasma 207: 195-202.

285. Kagalo, A. A.&N. Systschak. 1999. Preliminary results of the project "Chorology of the Western Ukrainian Flora". Acta Botanica Fennica 162: 91-93.

286. Kagawa, T.&M. Wada. 1999. Chloroplast-avoidance response induced by high-fluence blue light in prothallial cells of the fern Adiantum capillus-veneris as analyzed by microbeam irradiation. Plant Physiology (Rockville) 119: 917-923.

287. Kalkman, C.&H. P. Nooteboom. 1998. Flora Malesiana. Series II ferns and fern allies, volume 3. Rijksherbarium/Hortus Botanicus, Leiden, The Netherlands. vi + 334 pp.

288. Kalynyak, T. B., A. R. Leitch&J. G. Duckett. 1999. An investigation into PCD in Azolla filiculoides: development and response to abiotic stress. P. 562. In XVI International Botanical Congress - Abstracts.

289. Kanegae, T., T. Imaizumi&M. Wada. 1999. Cryptochrome genes of fern Adiantum. P. 77. In XVI International Botanical Congress - Abstracts.

290. Kapgate, D. K. 1999. Report of pteridophyte fructifications from the deccan Intertrappean beds of India. P. 338. In XVI International Botanical Congress - Abstracts.

291. Kar, P. P., S. Mishra&D. P. Singh. 1999. Influence of gibberellic acid on the sporulation of Azolla caroliniana, A. microphylla and A. pinnata. Biology&Fertility of Soils 29: 424-429.

292. Karrfalt, E. 1999. Some observations on the reproductive anatomy of Isoetes andicola. American Fern Journal 89: 198-203.

293. Kato, M. 1999. The Biology of Biodiversity. Springer-Verlag, Tokyo.

294. Kato, M.&R. Imaichi. 1999. Non-homology and uniqueness of vegetative organs in pteridophytes. P. 23. In XVI International Botanical Congress - Abstracts.

295. Kato, M.&N. Nakato. 1999. A cytotaxonomic study of Hainan (S. China) pteridophytes with notes on polyploidy and apogamy of Chinese species. Pp. 1-19. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

296. Kato, M.&H. Setoguchi. 1999. An rbcL-based phylogeny and heteroblastic leaf morphology of Matoniaceae. Systematic Botany 23: 391-400.

297. Kawakami, S. M., K. Kondo&S. Kawakami. 1999. Analysis of nucleolar organizer constitution by fluorescent in situ hybridization (FISH) in diploid and artificially produced haploid sporophytes of the fern Osmunda japonica (Osmundaceae). Plant Systematics&Evolution 216: 325-331.

298. Keating, P. L. 1999. Changes in paramo vegetation along an elevation gradient in southern Ecuador. Journal of the Torrey Botanical Society 126: 159-175.

299. Keiper, F. J.&R. McConchie. 1999. Using AFLPs to examine genetic diversity in umbrella fern. Hortscience 34: 543. [Abstract; Sticherus flabellatus]

300. Kerp, H.&M. Krings. 1999. New views on pteridosperms from the uppermost carboniferous and permian. P. 201. In XVI International Botanical Congress - Abstracts.

301. Kessler, M. 1999. Plant species richness and endemism during natural landslide succession in a perhumid montane forest in the Bolivian Andes. Ecotropica 5: 123-136.

302. Kessler, M.&K. Bach. 1999. Using indicator families for vegetation classification in species-rich neotropical forests. Phytocoenologia 29: 485-502.

303. Kessler, M., A. R. Smith&J. Gonzales. 1999. Inventario de pteridofitos en una transecta altitudinal del Parque Nacional Carrasco, dpto. Cochabamba, Bolivia. Revista de la Sociedad Boliviana de Botanica 2: 227-250.

304. Khatun, A., M. A. Ali&J. G. Dingle. 1999. Comparison of the nutritive value for laying hens of diets containing azolla (Azolla pinnata) based on formulation using digestible protein and digestible amino acid versus total protein and total amino acid. Animal Feed Science&Technology 81: 43-56.

305. Kirec, M.&C. Yarci. 1999. The flora of the agricultural areas in Enez (Edirne) and environs. Turkish Journal of Botany 23: 53-62.

306. Kiritchkova, A. I., E. I. Kostina&T. A. Travina. 1999. New species of Osmunda L. from the Jurassic deposits of the Irkutsk Coal Basin. Paleontologicheskii Zhurnal 2: 83-89. [Russian]

307. Klink, V.&S. M. Wolniak. 1999. Centrin translation is necessary for basal body formation in Marsilea vestita. Molecular Biology of the Cell 10 (Suppl.): 386a. [Abstract]

308. Koerner, W., E. Dambrine, J. L. Dupouey&M. Benoit. 1999. delta15N of forest soil and understorey vegetation reflect the former agricultural land use. Oecologia 121: 421-425.

309. Kohzuma, T., T. Inoue, F. Yoshizaki, Y. Sasakawa, K. Onodera, S. Nagatomo, T. Kitagawa, S. Uzawa, Y. Isobe, Y. Sugimura, M. Gotowda&Y. Kai. 1999. The structure and unusual pH dependence of plastocyanin from the fern Dryopteris crassirhizoma. The protonation of an active site histidine is hindered by pi-pi interactions. Journal of Biological Chemistry 274: 11817-11823.

310. Kokou, K., G. Caballe&K. Akpagana. 1999. Floristic analysis of forest patches in southern Togo. Acta Botanica Gallica 146: 139-144. [French]

311. Korall, P.&P. Kenrick. 1999. Phylogeny of Selaginellaceae based on rbcL gene sequences. P. 335. In XVI International Botanical Congress - Abstracts.

312. Korall, P., P. Kenrick&J. P. Therrien. 1999. Phylogeny of Selaginellaceae: Evaluation of generic/subgeneric relationships based on rbcL gene sequences. International Journal of Plant Sciences 160: 585-594.

313. Korn, R. W. 1999. Oscillatory growth of the fern gametophyte: a case of chaos in development. P. 561. In XVI International Botanical Congress - Abstracts.

314. Kositzyn, V. N. 1999. Productivity of some species of the Lycopodiaceae in coniferous-broad-leaved forest zone (Moscow and Yaroslavl regions). Rastitel'Nye Resursy 35: 37-42. [Russian; Diphasiastrum complanatum, Lycopodium clavatum, L. annotinum]

315. Kosterin, O. E. 1999. The observation of Cystopteris (Rhizomatopteris) montana (Lam.) Desv. and Cryptogramma stelleri (S.E. Gmel.) Prantl in the Tyshkantau Mountains (southern Dzhungarian Alatau mountain chain). Turczaninowia 2: 40-42.

316. Kostina, E. I. 1999. Czekanowskiales from the Jurassic deposits of the Kansk Coal Basin (Siberia). Paleontologicheskii Zhurnal 5: 105-111. [Russian]

317. Krassilov, V. A.&L. B. Golovneva. 1999. A new heterosporous plant from the Cretaceous of West Siberia. Review of Palaeobotany&Palynology 105: 75-84. 318. Krause, S., H. W. Bennert&C. Thiex. 1999. Distribution, ecology, phytosociology and morphology of Cystopteris dickieana Sim (Woodsiaceae, Pteridophyta) in Germany. Tuexenia 19: 219-239. [German]

319. Krings, M.&H. Kerp. 1999. Morphology, growth habit, and ecology of Blanzyopteris praedentata (Gothan) nov. comb., a climbing neuropteroid seed fern from the Stephanian of central France. International Journal of Plant Sciences 160: 603-619.

320. Krstic, B., M. Ercegovac, L. Maslarevic, S. Dajic&J. Milivojevic. 1999. On the age of the marine Inovo Formation of Stara Planina, Eastern Serbia, dated on palynomorphs. Bulletin Academie Serbe des Sciences et des Arts Classe des Sciences Mathematiques et Naturelles Sciences Naturelles 39: 91-97.

321. Kucherov, I. B.&A. N. Sennikov. 1999. New additions and corrections to the flora of "Kivach" reserve (Karelia). Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii 104: 44-46. [Russian]

322. Kuerschner, H.&G. Parolly. 1999. On the occurrence of Isoetes histrix in the Menderes Massif of western Turkey: A synecological study and the first record of an Isoetion community for Turkey. Botanische Jahrbuecher Fuer Systematik Pflanzengeschichte und Pflanzengeographie 121: 423-451.

323. Kumar, A.&P. Kaushik. 1999. Antibacterial effect of Adiantum capillus-veneris Linn. Indian Fern Journal 16: 72-74.

324. Kumar, E. S. S., P. C. S. Kumar&C. S. Kumar. 1999. Rediscovering Sciaphila janthina (Champ.) Thw. (Triuridaceae) and Schizaea dichotoma (L.) Smith (Schizaeaceae) in Kalakkadu-Mundanthurai Tiger Reserve, Tamil Nadu. J. Econ. Taxon. Bot. 23: 695-698.

325. Kumar, K.&S. Kannaiyan. 1999. Characterization of mutants of Azolla microphylla and A. filiculoides obtained through chemical mutagenesis. Indian Journal of Plant Physiology 4: 242-245.

326. Kuriyama, A.&M. Maeda. 1999. Direct production of sporophytic plants from spores of Equisetum arvense. Plant Cell Tissue&Organ Culture 58: 77-79.

327. Kvacek, Z.&S. R. Manchester. 1999. Eostangeria Barthel (extinct cycadales) from the paleogene of western North America and Europe. International Journal of Plant Sciences 160: 621-629.

328. LaDe, A., L. Shannon&A. M. Ellison. 1999. Seed bank composition of a northeastern U. S. tussock swamp. Wetlands 1: 255-261.

329. Lal, J.&A. Kumar. 1999. List of taxa of pteridophytes not included in the flora of Madhya Pradesh: volume 1. J. Econ. Taxon. Bot. 22: 657-660.

330. Lantz, T. C., G. W. Rothwell&R. A. Stockey. 1999. Conantiopteris schuchmanii, gen. et sp. nov., and the role of fossils in resolving the phylogeny of Cyatheaceae s.l. Journal of Plant Research 112: 361-381.

331. Lantz, T. C.&R. A. Stockey. 1999. A filicalean fern from the Paleocene of central Alberta Canada. Addendum 24. In XVI International Botanical Congress - Abstracts.

332. Larson, D. W., U. Matthes-Sears&P. E. Kelly. 1999. The cliff ecosystem of the Niagara escarpment. Pp. 362-374. In R. C. Anderson, J. S. Fralish&J. M. Baskin (Eds.). Savannas, barrens, and rock outcrop plant communities of North America. Cambridge University Press, Cambridge. [Polypodium virginianum]

333. Leal, D. P., M. I. Isla, M. A. Vattuone&A. R. Sampietro. 1999. A hysteretic invertase from Equisetum giganteum L. Phytochemistry (Oxford) 52: 1009-1016.

334. Leao Barros, I. C. 1999. Pteridofitas das Matas do Bituri Grande, municipio de Brejo da Madre de Deus, estado de Pernambuco, Brasil. Memorias, Coimbra, Sociedade Broteriana 1: 1-112. [Portuguese]

335. Lee, C. S.&Y. C. Oh. 1999. A taxonomic study of the genus Athyriopsis in Korea. P. 335. In XVI International Botanical Congress - Abstracts.

336. Lee, I. S., A. Nishikawa, F. Furukawa, K. I. Kasahara&S. U. Kim. 1999. Effects of Selaginella tamariscina on in vitro tumor cell growth, p53 expression, G1 arrest and in vivo gastric cell proliferation. Cancer Letters 144: 93-99.

337. Lee, K. K., J. H. Kim, J. J. Cho&J. D. Choi. 1999. Inhibitory effects of 150 plant extracts on elastase activity, and their anti-inflammatory effects. International Journal of Cosmetic Science 21: 71-82. [Dryopteris crassirhizoma]

338. Lee, T. C. W., K. C. L. Chau&S. H. Wu. 1999. New records and clarification of some names of Pteridophyta in Hong Kong: 1 . J. Trop. Subtrop. Bot. 7: 195-201.

339. Lejeune, A., A. Cagauan&C. Van Hove. 1999. Review article. Azolla research and development: Recent trends and priorities. Symbiosis 27: 333-351.

340. Leon, B. 1999. Blechnum penna-marina in Peru. American Fern Journal 89: 267-269.

341. Leon, B. 1999. Lineages in the Andes: the fern genus Campyloneuron. P. 236. In XVI International Botanical Congress - Abstracts.

342. Lequesne, C., C. Villagran&R. Villa. 1999. History of "olivillo" (Aextoxicon punctatum) and Myrtaceae relict forests of Isla Mocha, Chile, during the late Holocene. Revista Chilena de Historia Natura 72: 31-47. [Spanish]

343. Li, B. G., H. Wang, Z. Hua&Z. F. Xu. 1999. A preliminary study on the epiphytic ferns on Fig-trees in Xishuangbanna, S. Yunnan. Pp. 211-219. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

344. Li, J. H., C. W. He, N. C. Liang, L. E. Mo&X. Zhang. 1999. Effects of antitumor compounds isolated from Pteris semipinnata L. on DNA topoisomerases and cell cycle of HL-60 cells. Acta Pharmacologica Sinica 20: 541-545.

345. Li, J. W.&C. H. Haufler. 1999. Genetic variation, breeding systems, and patterns of diversification in Hawaiian Polypodium (Polypodiaceae). Systematic Botany 24: 339-355.

346. Li, P., K. Matsunaga&Y. Ohizumi. 1999. Enhancement of the nerve growth factor-mediated neurite outgrowth from PC12D cells by Chinese and Paraguayan medicinal plants. Biological&Pharmaceutical Bulletin 22: 752-755. [Equisetum giganteum, Gymmopteris rufa]

347. Li, R., D. Zhang&H. Q. Zhang. 1999. Scanning electron microscope observations on the vessels of ferns: Adiantum, Matteuccia, and Osmunda from Heilongjiang Province, China. International Journal of Plant Sciences 160: 595-602.

348. Lin, B. L. 1999. Asymmetric cell division as a mechanism of cell determination in vascular plants. Pp. 146-162. In P. C. Cheng, P. P. Hwang, J. L. Wu, G. Wang&H. Kim (Eds.). Focus on multidimensional microscopy, Vol. 2, Biological and material applications. World Scientific Publishing, Singapore.

349. Lin, B. L.&W. J. Yang. 1999. Blue light and abscisic acid independently induce heterophyllous switch in Marsilea quadrifolia. Plant Physiology (Rockville) 119: 429-434.

350. Lin, S. J., K. Iwatsuki&M. Kato. 1999. Systematic study of Asian Lindsaea ferns. P. 335. In XVI International Botanical Congress - Abstracts.

351. Lin, S. J., M. Kato&K. Iwatsuki. 1999. Spore morphology of the fern genus Lindsaea. Journal of Japanese Botany 74: 353-366.

352. Lin, Y. X. 1999. A study on the fern genus Pseudocyclosorus Ching in China. Pp. 20-30. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

353. Liu, J., H. Y. Zhang, L. M. Wang&X. C. Tang. 1999. Inhibitory effects of huperzine B on cholinesterase activity in mice. Acta Pharmacologica Sinica 20: 141-145. [Lycopodium]

354. Liu, J. X.&Y. X. Li. 1999. An introduction of the Sphenophytina. Pp. 31-33. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

355. Liu, J. X.&Y. X. Li. 1999. Studies on spore morphology of Cystopteris Berhn. From Beijing. Pp. 328-330. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

356. Liu, J. X.&Y. Y. Zhao. 1999. Advances and prospects in research of spore morphology of the Pteridophyta. Pp. 331-334. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

357. Liu, L., M. J. Zhang&Y. Li. 1999. The resource of pteridophytes in Changbai Mountain, NE. China. Pp. 397-407. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

358. Liu, Z. H., N. Liu&Y. L. Zhou. 1999. An ultrastructural study of the development of blepharoplast and the origin of multilayered structure in the sperm of Lygodium japonicum. Acta Botanica Sinica 41: 1160-1163. [Chinese]

359. Liu, Z. S., Z. S. He&K. L. Dong. 1999. Palynological assemblage of a drilling-section (basal part of the Kizilnur Formation) from Yaha, Kuqa, Xinjiang, NW China. Acta Micropalaeontologica Sinica 16: 82-88. [Chinese]

360. Lofall, B. P. 1999. Junkerbregne Polystichum braunii, ny karplante for Ostfold. Blyttia 57: 149-151. 361. Lombardi, J. A., A. Salino, F. R. N. Toledo&M. S. Marques. 1999. Liquens e outros oorganismos epifilicos em Conchocarpus macrophyllus J. C. Mikan no Parque Estadual do Rio Doce, Minas Gerais, Brasil. Revista Brasileira de Botanica 22: 437-441. [Portuguese]

362. Lorea-Hernandez, F. G.&A. R. Smith. 1999. Two new fern species from southern Mexico. American Fern Journal 89: 181-186. [Diplazium errans, Polystichum schizophyllum]

363. Lorscheitter, M. L., A. R. Ashraf, P. G. Windisch&V. Mosbrugger. 1999. Pteridophyte spores of Rio Grande do Sul flora, Brazil: Part II. Palaeontographica Abteilung B Palaeophytologie 251: 71-235.

364. Lu, H., J. Hu, L. X. Zhang&R. X. Tan. 1999. Bioactive constituents from Pteris multifida. Planta Medica 65: 586-587.

365. Lu, S. G. 1999. New materials of Polypodiodes (Polypodiaceae) from China. Acta Botanica Yunnanica 21: 24. [Chinese]

366. Lu, S. G. 1999. Taxonomic notes on Pteris (Pteridaceae) from Yunnan, China. Acta Phytotaxonomica Sinica 7: 279-280.

367. Lu, S. G. 1999. A new species of the genus Polypodiodes Ching (Polypodiaceae) from China. Acta Phytotaxonomica Sinica 37: 294-296.

368. Lu, S. G. 1999. The subfamily Polypodioidaea (Polypodiaceae) in China. Pp. 34-44. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing. [Polypodioides pseudolachnopus]

369. Lu, S. G. 1999. Three new names for Chinese ferns. Guihaia 19: 27-28.

370. Lu, S. G. 1999. A taxonomical study on the genus Dryopteris subgenus Erythrovariae from China. Guihaia 19: 105-118.

371. Luceno, M., J. N. Lopez, B. Garcia Munoz, A. Gonzalez Canalejo&E. Blanco Castro. 1999. Some additions to the knowledge of the flora of Gredos. IV. Anales del Jardin Botanico de Madrid 57: 433-436. [Spanish; Azolla filiculoides, Huperzia selago, Lycopodiella inundata]

372. Lugardon, B., L. Grauvogel-Stamm&I. Dobruskina. 1999. The microspores of Pleuromeia rossica Neuburg (Lycopsida; Triassic): Comparative ultrastructure and phylogenetic implications. Comptes Rendus de L'Academie des Sciences Serie II Sciences de la Terre et des Planetes 329: 435-442.

373. Lyashenko, G. F. 1999. Dynamics of higher aquatic vegetation in the Rybinsk reservoir. Botanicheskii Zhurnal (St. Petersburg) 84: 106-111. [Russian; Equisetum fluviatile]

374. Maden, A.&D. Whittier. 1999. Ultrastructure of the spermatozoid of Huperzia lucidula. P. 561. In XVI International Botanical Congress - Abstracts.

375. Madhusoodanan, P. V.&C. Abdul Hameed. 1999. Crepidomanes lunulatum (Hymenophyllaceae: Pteridophyta), a new filmy fern species from South India. Fern Gazette 15(8): 265-268.

376. Mahaffy, J. F. 1999. Vegetational patterns in Herrin and Springfield coals (middle Pennsylvanian of Illinois) based on miospore profiles with comparison to coal-ball patterns. University of Illinois, Urbana-Champaign, Illinois. 211 pp. [Dissertation]

377. Mai, D. H. 1999. The lower miocene floras of the Spremberger sequence and the second brown coal horizon in the Lusatica region Part I: Waterferns, conifers, and monocotyledons. Palaeontographica Abteilung B Palaeophytologie 250: 1-76. [German; Marsilea reticulata]

378. Major, A.&P. Odor. 1999. Genet composition of Diphasiastrum complanatum in Western Hungary: A case study. American Fern Journal 89: 106-123.

379. Mandal, B., P. L. G. Vlek&L. N. Mandal. 1999. Beneficial effects of blue-green algae and Azolla, excluding supplying nitrogen, on wetland rice fields: A review. Biology&Fertility of Soils 28: 329-342.

380. Mani, P. K. 1999. Biochemical and biotechnical investigations on the water fern Salvinia molesta Mitchell. Cochin University of Science and Technology, Cochin, India. [Dissertation]

381. Manickam, V. S.&S. D. Rajkumar. 1999 . Polymorphic ferns of the Western Ghats, south India. Bishen Singh Mahendra Pal Singh, Dehra Dun India. xx, 302 pp.

382. Marin, A.&S. Cristina. 1998. A research on the development of the gametophyte in Thelypteris phegopteris (L.) Slosson. Acta Horti Bot. Bucurest 27: 29-34.

383. Masuyama, S.&Y. Watano. 1999. Cryptic speciation in Ceratopteris thalictroides. P. 255. In XVI International Botanical Congress - Abstracts.

384. McDonald, D. J. 1999. Montane flora of the southern Langeberg, South Africa: A checklist of the flowering plants and ferns. Bothalia 29: 119-137.

385. McDonald, P. M., C. S. Abbott&G. O. Fiddler. 1999. Development of a shrub-fern-ponderosa pine community eleven years after site preparation and release. Western Journal of Applied Forestry 14: 194-199. [Pteridium aquilinum var. pubescens]

386. McGrath, J. M.&L. G. Hickok. 1999. Multiple ribosomal RNA gene loci in the genome of the homosporous fern Ceratopteris richardii. Canadian Journal of Botany 77: 1199-1202.

387. McHaffie, H. 1999. Athyrium distentifolium var. flexile: An endemic variety. Botanical Journal of Scotland 51: 227-236.

388. McKenny, H. J. A.&J. B. Kirkpatrick. 1999. The role of fallen logs in the regeneration of tree species in Tasmanian mixed forest. Australian Journal of Botany 47: 745-753. [Blechnum wattsii]

389. Meche, M. S., A. L. Kenimer, M. A. Arnold&H. J. Lang. 1999. Nutrient loading in constructed wetlands. Hortscience 34: 835. [Abstract]

390. Medail, F.&P. Quezel. 1999. The phytogeographical significance of S.W. Morocco compared to the Canary Islands. Plant Ecology 140: 221-244. [Davallia canariensis]

391. Medina, L.&S. Cirujano. 1999. Marsilea strigosa (Marsileaceae) in Castilla y Leon. Anales del Jardin Botanico de Madrid 57: 156-157. [Spanish]

392. Medwecka, K. A. 1999. A new species of Actiniopteris (Pteridaceae) from Upper Katanga in the Democratic Republic of Congo. Fragm. Flor. Geobot. 44: 71-76.

393. Mehltreter, K.&M. Palacios-Rios. 1999. Advances in biogeography: a Latin American database of pteridophytes. P. 335. In XVI International Botanical Congress - Abstracts.

394. Mehra, P. N. 1999. Publications on Pteridophytes by P. N. Behra. Indian Fern Journal 16: 160-164.

395. Mehrotra, P., S. Garkoti, Y. S. Rawat&S. P. Singh. 1999. Morphological differences and habitat relationship of four common herb species of oak and pine forests of Central Himalaya. Oecologia Montana 8: 15-20. [Onychium contiguum]

396. Mendoza, A., B. Perez-Garcia&R. Riba. 1999. Prothallic development of Lygodium heterodoxum and Lygodium venustum (Schizaeaceae). Revista de Biologia Tropical 47: 83-92. [Spanish]

397. Mendoza, A., B. Perez-Garcia&R. Riba. 1999. Gametophyte morphology and anatomy of Didymochlaena truncatula (Dryopteridaceae). Revista de Biologia Tropical 47: 93-99. [Spanish]

398. Mendoza, A., B. Perez-Garcia&R. Riba. 1999. Sexual phase morphogenesis in the fern Arachniodes denticulata (Dryopteridaceae). Revista de Biologia Tropical 47: 791-797. [Spanish]

399. Menzel, F. 1999. The anatomy of ferns: Identification and evolution. Jahreshefte der Gesellschaft Fuer Naturkunde in Wuerttemberg 15515: 107-133. [German]

400. Mertz, O. 1999. Cultivation potential of two edible ferns, Diplazium esculentum and Stenochlaena palustris. Tropical Agriculture 76: 10-16.

401. Meurer-Grimes, B., J. Yu&Q. I. A. Valdespino. 1999. Chamaecyparin: A rare biflavone from Selaginella species. Zeitschrift fur Naturforschung C-A Journal of Biosciences 54: 1143-1144.

402. Meyer-Berthaud, B., M. Scheckler, M. Fairon-Demaret, W. G. Chaloner, N. Snigirevskaya&M. L. Trivett. 1999. Reconstructing the whole Archaeopteris plant. P. 13. In XVI International Botanical Congress - Abstracts.

403. Michelena, I. G. 1999. Esporas de la familia Thelypteridaceae (Pteridophyta) de la Provincia de Buenos Aires, Argentina. Polen 9: 25-34. [Spanish]

404. Millay, M. A. 1999. Deconstruction of the genus Scolecopteris (Marattiales). P. 339. In XVI International Botanical Congress - Abstracts.

405. Miravent, V., D. Draper, G. A. Rossello&C. Tauleigne Gomes. 1999. On some of the plants found in Alcochete (Ribatejo, Portugal). Anales del Jardin Botanico de Madrid 57: 436-437. [Spanish, Isoetes setaceum]

406. Mirza, M. M. 1999. An index to Wallich collection of ferns and fern-allies from Bangladesh held in Kew Herbarium . Bangladesh J. Pl. Taxon 6: 85-89.

407. Mishra, B. B., M. Kar, B. B. Patro, L. Behera&P. Sahoo. 1999. Toxicity degradation of chloro-alkali waste soil by Azolla. Indian Journal of Plant Physiology 4: 340-342.

408. Mistri, P. B., M. T. Sheikh&D. K. Kapgate. 1999. A report on the pteridophytic fructification from the deccan Intertrappean beds of Singhphur. P. 711. In XVI International Botanical Congress - Abstracts.

409. Mitchell, R. J., R. H. Marrs, M. G. Le Duc&M. H. D. Auld. 1999. A study of the restoration of heathland on successional sites: Changes in vegetation and soil chemical properties. Journal of Applied Ecology 36: 770-783. [Pteridium aquilinum]

410. Mitich, L. W. 1999. Bracken fern, Pteridium aquilinum (L.) Kuhn. Weed Technology 13: 429-432. 411. Moeser, G. M., R. Lupia&H. Schneider. 1999. Marsileaceae sporocarps and spores from the late cretaceous of Georgia. P. 338. In XVI International Botanical Congress - Abstracts.

412. Mohlenbrock, R. H. 1999 . Ferns. 2nd rev. ed. Southern Illinois University Press, Carbondale, Illinois USA. 240 pp.

413. Moran, R. C. 1999. At the movies: a new leaf. Fiddlehead Forum 26: 1, 4-5, 9.

414. Moran, R. C. 1999. Sporadic results. Fiddlehead Forum 26: 19, 21-23.

415. Moran, R. C.&A. R. Smith. 1999. Salvinia adnata Desv. versus S. molesta D. D. Mitch. American Fern Journal 89: 268-269.

416. Moran, R. C.&A. R. Smith. 1999. Phytogeographic relationships between neotropical and African-Madagascan pteridophytes. P. 719. In XVI International Botanical Congress - Abstracts.

417. Morbelli, M. A.&J. R. Rowley. 1999. Megaspore development in Selaginella: the gap and the mesospore. Plant Systematics&Evolution 217: 221-243. [Austria]

418. Morrow, A. C.&R. R. Dute. 1999. Electron microscopic investigation of the coating found on torus-bearing pit membranes of Botrychium dissectum, the common grape fern. IAWA Journal 20: 359-373.

419. Mosyakin, S. L. 1999. Does Gymnocarpium heterosporium W.H. Wagner (Dryopteridacaeae Herter) occur in Ukraine- Ukrayins'Kyi Botanichnyi Zhurnal 56: 524-527. [Ukrainian]

420. Mound, L. A. 1999. Saltatorial leaf-feeding Thysanoptera (Thripidae: Dendrothripinae) from Australia and New Caledonia, with newly recorded pests of ferns, figs and mulberries. Australian Journal of Entomology 38: 257-273.

421. Mugur, M.&B. Adela. 1998. A contribution to the knowledge of the anatomical structure of the pteridophyte (ferns) sporophyte. Acta Horti Bot. Bucurest 27: 43-50.

422. Mukhopadhyay, R. 1999. Cytotaxonomic observations on Selaginella Beauv. Phytomorphology 48: 343-347.

423. Mukhopadhyay, R.&J. B. Bhandari. 1999. Occurrence of microspore polyads in Selaginella intermedia (Bl.) Spring. Phytomorphology 49: 75-78.

424. Mullenniex, A., T. M. Hardig&M. R. Mesler. 1999. Molecular confirmation of hybrid swarms in the fern genus Polystichum (Dryopteridaceae). Syst. Bot. 23: 421-426.

425. Muller, S. 1999. Plant communities and conservation of Botrychium-rich grasslands in the Bitcherland (Northern Vosges Biosphere Reserve, France). Biodiversity&Conservation 8: 1519-1532. [Botrychium lunaria, Botrychium matricariifolium]

426. Murakami, N., S. Nogami, M. Watanabe&K. Iwatsuki. 1999. Phylogeny of Aspleniaceae inferred from rbcL nucleotide sequences. American Fern Journal 89: 232-243.

427. Murakami, N., M. Watanabe, J. Yokoyama, Y. Yatabe, H. Iwasaki&S. Serizawa. 1999. Molecular taxonomic study and revision of the three Japanese species of Asplenium sect. Thamnopteris. Journal of Plant Research 112: 15-25.

428. Murakami, N., Y. Yatabe, H. Iwasaki, D. Darnaedi&K. Iwatsuki. 1999. Molecular a-taxonomy of a morphologically simple fern Asplenium nidus complex from Mt. Halimun National Park, Indonesia. Pp. 53-66. In M. Kato (Ed.). The Biology of Biodiversity. Springer Verlag, Tokyo. 429. Murata, T. 1999. Regulation of nuclear migration and asymmetric division in rhizoid formation of Ceratopteris prothalli. P. 77. In XVI International Botanical Congress - Abstracts.

430. Murillo, M. T. 1999. Pteridofitos de Colombia I. Composicion y distribucion de las Lycopodiaceae en Colombia. Revista de la Academia Colombiana de Ciencias 23: 86. [Spanish]

431. Murphy, R. J.&I. J. Bennallick. 1999. Huperzia selago in Cornwall. Pteridologist 3: 95-97.

432. Musselman, L. J. 1999. Hashemite pteridophytes. Fiddlehead Forum 26: 37, 42.

433. Nagalingum, N., A. N. Drinnan&S. McLoughlin. 1999. Pteridophytes from the early cretaceous of south-eastern Australia. P. 339. In XVI International Botanical Congress - Abstracts.

434. Nakane, T., Y. Arai, K. Masuda, Y. Ishizaki, H. Ageta&K. Shiojima. 1999. Fern constituents: Six new triterpenoid alcohols from Adiantum capillus-veneris. Chemical&Pharmaceutical Bulletin (Tokyo) 47: 543-547.

435. Nasrollahzadeh, A. 1999. Freshwater fauna from Gilan (Iran). Zoology in the Middle East 17: 91-98. [German; Azolla]

436. Nishiyama, T.&M. Kato. 1999. Molecular phylogenetic analysis among bryophytes and tracheophytes based on combined data of plastid coded genes and 18S rRNA gene. Molecular Biology of Evolution 16: 1027-1036.

437. Nooteboom, H. P. 1999. The microsoroid Polypodiaceae: The genera and species and their delimitation. Pp. 45-53. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

438. Norman, D. J., J. M. F. Yuen, P. Strickler&R. Resendiz. 1999. Comparison of Cylindrocladium spathiphylli and Cylindrocladium pteridis using morphology, host range and PCR RAPDs. Phytopathology 89 (Suppl. 6): S56. [Abstract; Rumohra adiantiformis]

439. Notov, A. A. 1999. New floristic records in Tver' Region. Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii 104: 46-47. [Russian, Diphasiastrum tristachyum]

440. Nozue, K., J. Christie, T. Kiyosue, W. Briggs&M. Wada. 1999. The fern Adiantum phytochrome 3 and NPH1 exhibit the properties of UV-A and blue-light photoreceptors. P. 338. In XVI International Botanical Congress - Abstracts.

441. Offerhaus, B., F. Rymarczyk&G. Alziar. 1999. Observations chorologiques sur quelques plantes vasculaires des Alpes-Maritimes (France). Biocosme Mesogeen 15: 211-218.

442. Ohta, N.&M. Takamiya. 1999. Taxonomic studies of the Diplazium mettenianum complex (Woodsiaceae; Pteridophyta) in Japan: Morphology, cytology and taxonomy of plants with normal-shaped spores. Journal of Plant Research 112: 67-86.

443. Oiso, Y., M. Toyota&Y. Asakawa. 1999. Occurrence of a bis-bibenzyl derivative in the Japanese fern Hymenophyllum barbatum: First isolation and identification of perrottetin H from the pteridophytes. Chemical&Pharmaceutical Bulletin (Tokyo) 47: 297-298.

444. Oklejewicz, K. 1999. A new locality for Phyllitis scolopendrium (Polypodiaceae) in the Beskid Niski Mts. Fragmenta Floristica et Geobotanica Series Polonica 6: 290-292. [Polish]

445. Oldenhof, H.&M. T. M. Willemse. 1999. Functional compartments during sporangium development in the pteridophyte Cyrtomium falcatum (L. f.) Presl as expressed in tapetum function. Plant Biology (Stuttgart) 1: 99-107.

446. Oplustil, S. V., I. Sykorova&J. Bek. 1999. Sedimentology, coal petrology and palynology of the Radnice Member in the S-E part of the Kladno-Rakovnik Basin, Central Bohemia (Bolsovian). Acta Universitatis Carolinae Geologica 43: 599-623.

447. Orlov, A. A.&V. P. Krasnov. 1999. The possibility of application of phytoindication for quantitative evaluation of intensity 137Cs accumulation from the soil by medicinal plants of forests of Ukrainian Polessye. Rastitel'Nye Resursy 35: 79-86. [Russian; Pteridium aquilinum]

448. Ostertag, R.&S. E. Hobbie. 1999. Early stages of root and leaf decomposition in Hawaiian forests: Effects of nutrient availability. Oecologia 121: 564-573. [Cibotium]

449. Otsuka, K.&R. Fujiwara. 1999. A new hybrid of Deparia (Woodsiaceae) from Nagano Prefecture, central Japan. J. Phytogeogr. Taxon 47: 107-110.

450. Pacheco, L., S. Mendoza, D. Padilla&R. Riba. 1999. Anatomy of twenty species of Diplazium SW. P. 720. In XVI International Botanical Congress - Abstracts.

451. Pacheco, L.&R. C. Moran. 1999. Monograph of the neotropical species of Callipteris with anastomosing veins (Woodsiaceae). Brittonia 51: 343-388.

452. Pacheco, L., L. Zelaya, D. Padilla&R. Riba. 1999. Departure of pinnae trace in several species of Diplazium SW. P. 720. In XVI International Botanical Congress - Abstracts.

453. Page, C. N. 1997. The Ferns of Britain and Ireland, Second (revised and updated) Edition. Cambridge University Press, Cambridge UK.

454. Pahnke, J., A. Troitsky, A. Antonov&W. Martin. 1999. Chloroplast rDNA internal transcribed spacer sequences in fern molecular systematics. P. 91. In XVI International Botanical Congress - Abstracts.

455. Pajaron, S., E. Pangua&L. Garcia-Alvarez. 1999. Sexual expression and genetic diversity in populations of Cryptogramma crispa (Pteridaceae). American Journal of Botany 86: 964-973.

456. Palacios-Rios, M.&K. Mehltreter. 1999. Der Gebrauch von Maquique und die Gefahrdung der Baumfarne Mexikos. Palmengarten 63: 110-114.

457. Palacios-Rios, M.&K. Mehltreter. 1999. Biogeographical analysis of the pteridophytes of Veracruz, Mexico. P. 336. In XVI International Botanical Congress - Abstracts.

458. Pangtey, Y. P. S.&L. M. Tewari. 1999. Lepisorus sublinearis (Baker ex Takeda) Ching (Polypodiaceae): an interesting addition to the fern flora of north-western Himalaya. Indian J. Forest. 21: 385-386.

459. Pangtey, Y. P. S.&L. M. Tewari. 1999. Further additions to the fern flora of Nainital (north-western Himalaya). Indian J. Forest. 21: 355-356.

460. Pangtey, Y. P. S.&L. M. Tewari. 1999. Selaginella vaginata Spring (Selaginellaceae): a poorly known species in the pteridophytic flora of north-western Himalaya. Indian Journal of Forestry 22: 278-280.

461. Pangua, E., L. Garcia-Alvarez&S. Pajaron. 1999. Studies on Cryptogramma crispa spore germination. American Fern Journal 89: 159-170. 462. Pangua, E., C. Prada&L. G. Quintanilla. 1999. Bibliografia Botanica Iberica, 1998-1999. Pteridophyta. Bot. Complutensis 23: 163-165.

463. Parris, B. S. 1999. Circum-Antarctic distribution patterns in pteridophytes. P. 176. In XVI International Botanical Congress - Abstracts.

464. Parris, B. S. 1999. Circum-Antarctic distribution patterns in pteridophytes. P. 336. In XVI International Botanical Congress - Abstracts.

465. Pavlicko, A.&F. Prochazka. 1999. Daisy-leaf moonwort (Botrychium matricariifolium (Doll) A. Braun) in Czech Bohemian Forest (Sumava Mts.). Erica 8: 13-21. [Czechoslovakian]

466. Peck, J. H. 1999. Salvinia minima in Arkansas. American Fern Journal 89: 215-216.

467. Pellinen, K., J. Sarvela&P. Uotila. 1999. Chromosome counts on the fern genus Gymnocarpium (Dryopteridaceae) from Finland. Ann. Bot. Fennici 35: 265-266.

468. Pena-Chocarro, M. C., B. Jimenez, G. Marin&S. Knapp. 1999. Checklist of the pteridophytes of the Mbaracayu Forest Nature Reserve, Paraguay. Fern Gazette 15: 221-258.

469. Penas Merino, A., C. Perez Morales, L. Herrero Cembranos, S. del Rio Gonzalez, C. Lence Paz&R. Alonso Redondo. 1999. The plants from Leon province: Note XVI. Studia Botanica 18: 133-135. [Spanish]

470. Perez Latorre, A. V., A. Salari, P. Navos, D. Navos, Y. Fil&B. Cabezudo. 1999. Dasos sobre le flore y vegetacion del Parque Natural de Los Alminocales (Cadiz-Malaga, Espania). Acta Bot. Malacitana 24: 133-184. [Spanish]

471. Perez-Garcia, B., A. Mendoza, I. Reyes&R. Riba. 1999. Apogamy in Dryopteris munchii (Dryopteridaceae), endemic species of Chiapas, Mexico. P. 560. In XVI International Botanical Congress - Abstracts.

472. Perez-Garcia, B., A. Mendoza, I. Reyes Jaramillo&R. Riba. 1999. Sexual phase morphogenesis of six Mexican fern species (Dryopteris) (Dryopteridaceae). Revista de Biologia Tropical 47: 69-81. [Spanish]

473. Perez-Garcia, B., R. Riba&A. R. Smith. 1999. Thelypteridaceae. Pp. 1-34. In J. Rzedowski (Ed.). Flora del Bajio yede regiones adyacentes Fasc. 79.

474. Peroni, A.&G. Peroni. 1999. Note su alcune nuove stazioni di un ibrido del gruppa di Cystopteris fragilis (L.) Berhnh. (Athyriaceae, Pteridophyta) in Svizzera, Francia e Italia. Bollettino Societa Ticinese di Scienze Naturali, Lugano 85: 95-97. [Italian]

475. Peroni, A.&G. Peroni. 1999. Contribution to knowledge of the pteridological flora of Valle Strona (Verbania, N-W Italy). Museo Regionale di Scienze Naturali Bollettino (Turin) 17: 205-214. [Italian]

476. Pervin, S., M. S. Hoque, M. Jahiruddin&M. H. Mian. 1999. Effects of urea, Azolla and Sesbania incorporation on the concentration and uptake of N, P, K and S in rice (Oryza sativa). Pakistan Journal of Scientific&Industrial Research 42: 145-149.

477. Phipps, C. J., T. N. Taylor&E. L. Taylor. 1999. Fossil data and the phylogenetic position of the Osmundaceae. P. 91. In XVI International Botanical Congress - Abstracts.

478. Piekos, M., H. 1999. Endangerment and conservation of pteridophytes in Poland. Pp. 408-416. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

479. Piekos-Mirkowa, H., Z. Mierk&A. Miechowka. 1999. Ecological atlas of pteridophytes of the Tatra Mts. (S. Poland) with selected ecodiagrams. Pp. 220-243. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

480. Pigg, K. B. 1999. Isoetalean Lycopsid evolution. P. 120. In XVI International Botanical Congress - Abstracts.

481. Pillai, R. S.&B. L. Ong. 1999. Effects of inorganic nitrogen availability on the sporophytes of Acrostichum aureum L. Photosynthetica (Prague) 36: 259-266.

482. Pilotaz, F.&P. Masson. 1999. Huperzine A: An acetylcholinesterase inhibitor with high pharmacological potential. Annales Pharmaceutiques Francaises 57: 363-373. [French]

483. Pisani, G. 1999. First contribution to the knowledge of the fern flora of Calabria Serre Highlands. Inform. Bot. Ital. 31: 3-6.

484. Prada, C.&V. Moreno. 1999. Gametophyte development, sex expression and antheridiogen systems in Pteris incompleta Cav. (Pteridaceae). P. 561. In XVI International Botanical Congress - Abstracts.

485. Prado, J. 1999. The genus Adiantum L. (Pteridaceae) in Brazil: Annotated checklist. P. 720. In XVI International Botanical Congress - Abstracts.

486. Prado, J., T. S. Filgueiras, C. Kameyama&W. M. Ferreira. 1999. A Sessao de Nomenclatura de St. Louis e comentarios sobre algumas propostas paro o novo Codigo Internatcional de Nomenclatura Botanica. Acta Botanica Brasilica 13: 323-329. [Portuguese]

487. Prado, J.&M. Palacios-Rios. 1999. Taxonomy and distribution of Adiantum trapeziforme L. and A. pentadactylon Langsd.&Fisch. (Pteridaceae). American Fern Journal 88: 145-149.

488. Preston, C. D.&M. O. Hill. 1999. The geographical relationships of the British and Irish flora: A comparison of pteridophytes, flowering plants, liverworts and mosses. Journal of Biogeography 26: 629-642.

489. Prochazka, F.&J. Harcarik. 1999. New localities of Diphasiastrum species in the Krkonose Mts and elsewhere in the Czech Republic where three or more species of this genus are recorded. Preslia (Prague) 71: 193-215.

490. Pryer, K. M. 1999. Phylogeny of marsileaceous ferns and relationships of the fossil Hydropteris pinnata reconsidered. International Journal of Plant Sciences 160: 931-954.

491. Pryer, K. M., H. H. Schneider, J. S. Hunt, L. Sappelsa, P. G. Wolf, S. D. Sipes&A. R. Smith. 1999. Phylogeny of basal tracheophytes and ferns inferred from four large data sets: morphology, 18S, nrDNA, rbcL, and atpB. P. 91. In XVI International Botanical Congress - Abstracts.

492. Puente Garcia, E., R. Alonso Redondo, M. J. Lopez Pacheco&A. Penas Merino. 1999. New contribution to the Iberian and Balear Pteridophytic Flora Atlas. Acta Botanica Malacitana 2419: 235-236. [Spanish]

493. Punetha, N.&R. Punetha. 1999. Distribution and ecology of extant lycopsids in Kumaon (Central Himalaya). Proceedings of the National Academy of Sciences India Section B (Biological Sciences) 69: 299-305. [Huperzia hamiltonii, H. pulcherrima, H. subulifolia, Lycopodiella cernua, Lycopodium japonicum]

494. Quintanilla, L.&J. Amigo. 1999. Catalogues on the fern floras of the natural protected areas of Galicia. Bot. Complutensis 23: 99-110. [Spanish]

495. Quintanilla, L.&J. Amigo. 1999. Distribution of the genus Cystopteris Bernh. (Athyriaceae, Pteridophyta) on Galicia (NW Iberian Peninsula). Nova Acta Cient. Compostel., Biol. 9: 117-124. [Spanish]

496. Ragini, J. C., D. Thangaraju&P. M. M. David. 1999. Effect of organic manures on some predators in the rice ecosystem. International Rice Research Notes 24: 15. [Azolla]

497. Rahaman, S.&T. Sen. 1999. A comparative study of the morpho-anatomy of the fern genera Pleopeltis Humb.&Bonpl. Ex Willd. And Lepisorus (J. Smith) Ching. Indian Fern Journal 16: 1-11.

498. Rahaman, S.&T. Sen. 1999. Is fern genus Lepidogrammitis Ching taxonomically distinct from Lemmaphyllum Presl.- Indian Fern Journal 16: 87-95.

499. Rajesh, K. P.&P. V. Madhusoodanan. 1999. Extinction needn't be forever. Nature 399: 631.

500. Rajkumar, S. D., V. S. Manickam&M. Arunachalam. 1999. Unusual frond development in the sensitive fern Bolbitis X prolifera (Bory) C. chr. and Tardieu-Blot (Lomariopsidaceae). Journal of South Asian Natural History 4: 83-85.

501. Rakotondrainibe, F. 1999. The pteridophytes of the eastern slope of the Reserve Naturelle Integrale d'Andohahela, Madagascar: Distribution and floristic analysis. Pp. 25-49. In S. M. Goodman (Eds.). A floral and faunal inventory of the Reserve Naturelle Integrale d'Andohahela, Madagascar: with reference to elevational variation. Fieldiana Zoology, n.s. 94, Chicago.

502. Rakotondrainibe, F.&D. Lobreau-Callen. 1999. Revision of the genus Cyathea sect. Gymnosphaera (Cyatheaceae) in Madagascar and the Comoro Islands. Adansonia (Paris) 21: 137-152. [French]

503. Rakotondrainibe, F.&M. Randriambololona. 1999. La flore pteridologique due complexe des reserves de l'Andringitra et d'Ivohibe. Pp. 23-42. In S. M. Goodman &B. P. N. Rasolonandrasana (Eds.). Inventaire biologique de la reserve speciale du pic d'Ivohibe et du couloir forestier qui la relie au Park national d'Andringitra. Recherches pour le developpement, Series Sciences Biologiques number 15. [French]

504. Ranal, M. A. 1999. Effects of temperature on spore germination in some fern species from semideciduous mesophytic forest. American Fern Journal 89: 149-158.

505. Rancon, S., A. Chaboud, N. Darbour, G. Comte, D. Barron, J. Raynaud&P. Cabalion. 1999. A new C-glycosyl xanthone isolated from Davallia solida. Phytochemistry (Oxford) 52: 1677-1679.

506. Ranker, T. A., C. H. Haufler, A. R. Smith, J. P. Therrien&H. J. Houston. 1999. Phylogeny of Polypodiaceae and Grammitidaceae, two derived and closely related fern families. P. 92. In XVI International Botanical Congress - Abstracts.

507. Rasbach, H., K. Rasbach, C. Jerome&G. Schropp. 1999. The distribution of Trichomanes speciosum Willd. (Pteridophyta) in south-western Germany and in the Vosges mountains. Carolinea 57: 27-42. [German] 508. Redman, D. E. 1999. Two additional stations for the southern woodfern hybrid, Dryopteris x australis in Maryland. American Fern Journal 89: 216-217.

509. Redondo, N., A. Blanco&M. Horjales. 1999. Study of the genus Polypodium in the Iberian northwest: nuclear DNA content. Nova Acta Cient. Compostel., Biol. 9: 109-116. [Spanish]

510. Redondo, N., M. Horjales&A. Blanco. 1999. Polipodios hibridos (Polypodiaceae) en el noroeste Iberico. An. Jard. Bot. Madrid 57: 158-159. [Spanish]

511. Redondo, N., M. Horjales&A. Blanco. 1999. Hybrid Polypodia (Polypodiaceae) in the North West of the Iberian Peninsula. Anales del Jardin Botanico de Madrid 57: 158-159. [Spanish; Polypodium x fontqueri, Polypodium x mantoniae, Polypodium x shivasiae]

512. Redondo, N., M. Horjales&A. Blanco. 1999. Nuclear DNA amounts and spores in Aspleniaceae: Asplenium L., Phyllitis Hill and Ceterach Willd. Nova Acta Cient. Compostel., Biol. 9: 99-107. [Spanish]

513. Reixach, N., R. Lafont, F. Camps&J. Casas. 1999. Biotransformations of putative phytoecdysteroid biosynthetic precursors in tissue cultures of Polypodium vulgare. European Journal of Biochemistry 226: 608-615.

514. Renzaglia, K. 1999. Complexity of pteridophyte spermatozoids and determination of structure homology. P. 233. In XVI International Botanical Congress - Abstracts.

515. Renzaglia, K. S., D. L. Bernhard&D. J. Garbary. 1999. Developmental ultrastructure of the male gamete of Selaginella. International Journal of Plant Sciences 160: 14-28.

516. Riba, R.&Perez-Garcia, B . 1999 . Flora de Mexico: volume 6, no. 4. Dryopteridaceae. Consejo Nacional de la Flora de Mexico, Mexico D.F. 48 pp.

517. Rocha, E. 1999. Marattiaceae of the Vista Chinesa Forest Reserve, Rio de Janeiro . Albertoa 5: 17-20.

518. Rodriguez Marzal, J. L. 1999. Some new or interesting plants for the flora of Badajoz. Acta Botanica Malacitana 2419: 187-189. [Spanish; Athyrium filix-femina, Blechnum spicant, Dryopteris affinis, Osmunda regalis]

519. Rolleri, C. H., M. d. C. Lavalle, A. Mengascini&M. Rodriguez. 1999. Intercellular pectic protuberances in mesophyll cells of Angiopteris Hoffm. and other marattealean ferns. Physis Seccion a Los Oceanos y Sus Organismos 57: 1-11. [Spanish]

520. Rosenberger, T.&K. Williams. 1999. Responses of vascular epiphytes to branch-fall gap formation in Clusia trees in a montane rain forest. Selbyana 20: 49-58. [Grammitis zurquina]

521. Rothwell, G. W. 1999. Fossils and ferns in the resolution of land plant phylogeny. Botanical Review 65: 188-218.

522. Roux, J. P. 1999. Polypodium ensiforme, the correct name for Microsorum ensiforme (Polypodiaceae). Bothalia 29: 103-107.

523. Rull, V.&T. Vegas-Vilarrubia. 1999. Surface palynology of a small coastal basin from Venezuela and potential paleoecological applications. Micropaleontology (New York) 45: 365-393.

524. Rumsey, F. J., J. C. Vogel, S. J. Russell, J. A. Barrett&M. Gibby. 1999. Population structure and conservation biology of the endangered fern Trichomanes speciosum Willd. (Hymenophyllaceae) at its northern distributional limit. Biological Journal of the Linnean Society 66: 333-344.

525. Rumsey, F. J., J. C. Vogel, S. J. Russell, J. A. Barrett&M. Gibby. 1999. Reproductive strategies, dispersal mechanisms and the genetic structure of Trichomanes speciosum in Scotland. BSBI News 81: 79.

526. Runk, K. 1999. Estonian ferns. Tartu Ulikooli Botaanikaaed, Tartu, Estonia. 74 pp. [Estonian]

527. Runk, K. 1999. Ferns outdoors and indoors. Valgus, Tallinn, Estonia. 303 pp. [Estonian]

528. Russell, A. E., T. A. Ranker, C. E. C. Gemmill&D. R. Farrar. 1999. Patterns of clonal diversity in Dicranopteris linearis on Mauna Loa, Hawaii. Biotropica 31: 449-459.

529. Rydin, C., N. Wikstrom&P. Kenrick. 1999. Phylogeny of Isoetes (Lycopsida): resolving basal relationships using rbcL sequences. P. 338. In XVI International Botanical Congress - Abstracts.

530. Sahashi, N. 1999. A preliminary review on Asian Botrychiaceae. Pp. 54-75. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

531. Sahoo, S. K.&D. B. K. 1999. Weed control by Azolla in rice (Oryza sativa) fields of South 24-Parganas, West Bengal. Indian Journal of Agricultural Sciences 69: 283-284.

532. Sakamaki, Y.&Y. Ino. 1999. Contribution of fern gametophytes to the growth of produced sporophytes on the basis of carbon gain. Ecological Research 14: 59-69.

533. Santhosh, K. E. S., K. P. C. Suresh&K. C. Sathish. 1999. Rediscovering Sciaphila janthina (Champ.) Thw. (Triuridaceae) and Schizaea dichotoma (L.) Smith (Schizaeaceae) in Kalakkadu-Mundanthurai Tiger Reserve, Tamil Nadu. Journal of Economic&Taxonomic Botany 23: 695-698.

534. Sarma, R., A. K. Phookan&K. N. Bhagabati. 1999. Efficacy of some plant extracts in the management of sheath blight disease of rice. Journal of Mycology&Plant Pathology 29: 336-339. [Diplazium esculentum]

535. Satapathy, K. B. 1999. Comparative efficiency of blue-green algae, Azolla and other biofertilizers on growth of rice. Indian Journal of Plant Physiology 4: 100-104.

536. Sato, T.&Y. Ohtoshi. 1999. Spatial vegetation patterns and phylodiversity with reference to various forest types and micro-topography in the central-south Kamchatka. Cryospheric studies in Kamchatka II: 93-110.

537. Sato, Y., A. Kadota&M. Wada. 1999. Mechanically induced avoidance response of chloroplasts in fern protonemal cells. Plant Physiology (Rockville) 121: 37-44. [Adiantum capillus-veneris]

538. Schad, W. 1999. Patterns of macroevolution in vertebrates and early cormophytes. Journal of Vertebrate Paleontology (Suppl. 3): 73A. [Abstract]

539. Scheckler, S. E., W. L. Cressler, T. Connery, S. Klavins&D. L. Postnikoff. 1999. Devonian shrub and tree dominated landscapes. P. 13. In XVI International Botanical Congress - Abstracts.

540. Schneckenburger, S. 1999. Systematics of the pteridophytes. Progr. Bot. 60: 413-437.

541. Schneider, E. L.&S. Carlquist. 1999. SEM studies on vessels in ferns. 13. Nephrolepis. American Fern Journal 89: 171-177.

542. Schneider, E. L.&S. Carlquist. 1999. SEM studies on vessels in ferns. 11. Ophioglossum. Botanical Journal of the Linnean Society 129: 105-114. [Ophioglossum crotalophoroides, O. pendulum ssp. falcatum, O. vulgatum]

543. Schneider, E. L.&S. Carlquist. 1999. SEM studies on vessels in ferns. XV. Selected rosette epiphytes (Aspleniaceae, Elaphoglossaceae, Vittariaceae). International Journal of Plant Sciences 160: 1013-1020. [Asplenium nidus, Elaphoglossum hirtum, Vittaria lineata]

544. Schneider, H. 1999. Yet another fern with storage roots: Cheilanthes bolborrhiza Mickel&Beitel (Pteridaceae: Pteridophyta) from Mexico and El Salvador. Fern Gazette 15: 269-274.

545. Schneider, H. 1999. Homology, complexity and evolution of sporophytic characters is pteridophytes. P. 233. In XVI International Botanical Congress - Abstracts.

546. Schneider, I. A. H.&J. Rubio. 1999. Sorption of heavy metal ions by the nonliving biomass of freshwater macrophytes. Environmental Science&Technology 33: 2213-2217. [Salvinia herzogii]

547. Schneller, J. 1999. Breeding systems, population genetics, and pteridophyte speciation. P. 255. In XVI International Botanical Congress - Abstracts.

548. Schroeter, A. I.&V. A. Panasiuk. 1999. Dictionary of plant names. [Chinese, English, Latin, Russian]. Koeltz Scientific Books, Koenigstein, Germany. 1033 pp.

549. Segarra, J. G. 1999. A new locality for Asplenium marinum (Aspleniaceae) of the Levantine coast of the Iberian Peninsula. Anales del Jardin Botanico de Madrid 57: 157-158. [Spanish]

550. Sempere, J. M., A. Campos, I. Velasco, F. Marco&D. Pamies. 1999. Modulation of adhesion molecules induced by Anapsos (Polypodium leucotomos). Immunology 98 (Suppl. 1): 105. [Abstract]

551. Sempere, J. M., A. Campos, I. Velasco, F. Marco&P. Santo. 1999. Induction of T and NK lymphocytes by Anapsos (Polypodium leucotomos). Immunology 98 (Suppl. 1): 106. [Abstract]

552. Sen, T.&S. Rahaman. 1999. Anatomy of Thyrsopteris elegans Kunz. Indian Fern Journal 16: 123-129.

553. Serbet, R.&G. W. Rothwell. 1999. Osmunda cinnamomea (Osmundaceae) in the upper Cretaceous of Western North America: Additional evidence for exceptional species longevity among filicalean ferns. International Journal of Plant Sciences 160: 425-433.

554. Serrano, R., F. Carrapico&R. Vidal. 1999. The presence of lectins in bacteria associated with the Azolla-Anabaena symbiosis. Symbiosis 27: 169-178.

555. Shahin, M., B. L. Smith&A. S. Prakash. 1999. Bracken carcinogens in the human diet. Mutation Research 443: 69-79. [Pteridium]

556. Sharma, B. D. 1999. Fungal spores in scales and phyllopodia of Isoetes. Indian Fern Journal 16: 24-27. [Isoetes reticulata]

557. Sharma, B. D. 1999. Publications on Pteridophytes by B. D. Sharma. Indian Fern Journal 16: 178-182.

558. Sharma, B. D.&R. P. Tripathi. 1999. Schlerocystis type fossil fungal sporocarp from the early Devonian of Rhynie chert. Indian Fern Journal 16: 19-23.

559. Sharma, B. D.&R. P. Tripathi. 1999. Fungal associations with pteridophytes: VAM in roots of Ophioglossum costatum. Indian Fern Journal 16: 48-50.

560. Sharma, B. M. 1999. Comparative studies in the Himalyan Cyatheaceae with special reference to ecology and anatomy. Indian Fern Journal 16: 96-122.

561. Sharma, M. P.&R. Singh. 1999. Effect of Azolla on wheat (Triticum aestivum) yield and soil properties. Indian Journal of Agricultural Sciences 69: 55-57.

562. Sharpe, J. M. 1999. Hurricane impact on the growth of a mangrove fern Acrostichum danaeifolium. P. 526. In XVI International Botanical Congress - Abstracts.

563. Shaw, C. L. 1999. Eocene palynomorphs of Taiwan-pteridophytic spores. Taiwania 44: 230-258.

564. Sheridan, H., N. Frankish&R. Farrell. 1999. Synthesis and antispasmodic activity of analogues of natural pterosins. European Journal of Medicinal Chemistry 24: 953-966. [Pteridium aquilinum]

565. Sheridan, H., N. Frankish&R. Farrell. 1999. Smooth muscle relaxant activity of pterosin Z and related compounds. Planta Medica 65: 271-272. [Pteridium aquilinum]

566. Shi, L. 1999. A new species of Microsorum (Polypodiaceae) from China. Acta Phytotax. Sin. 37: 100-102.

567. Shi, L., W. B. Gu, G. H. Zhu&X. C. Zhang. 1999. Some observations on the ferns from the typical karst limestone regions in Guizhou, Yunnan and Guangxi, SW China. Pp. 244-249. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

568. Shi, L.&X. C. Zhang. 1999. Taxonomic studies of the fern genus Lepidomicrosorum Ching et Shing (Polypodiaceae) from China and neighboring regions. Acta Phytotax. Sin. 37: 509-522.

569. Shi, L.&X. C. Zhang. 1999. Taxonomic studies of the genus Colysis C. Presl (Polypodiaceae) from Chna and neighboring regions. Acta Phytotaxonomica Sinicae 37: 54-80.

570. Shi, L.&X. C. Zhang. 1999. Taxonomy of the fern genus Leptochilus Kaulf. (Polypodiaceae). Acta Phytotaxonomica Sinicae 37: 145-152.

571. Shmakov, A. I. 1999 . Key for the ferns of Russia. Publishers of Altai State University, Barnaul, Russia. 107 pp. [Russian]

572. Shu, O.&G. Norris. 1999. Earliest Triassic (Induan) spores and pollen from the Junggar Basin, Xinjiang, northwestern China. Review of Palaeobotany&Palynology 106: 1-56.

573. Sillett, S. C. 1999. Tree crown structure and vascular epiphyte distribution in Sequoia sempervirens rain forest canopies. Selbyana 20: 76-97. [Polypodium glycyrrhiza, P. scouleri]

574. Simabukuro, E. A., A. Begovacz, L. M. Esteves&G. M. Felippe. 1999. Fern spore bank at Pedregulho (Itirapina, Sao Paulo, Brazil). Revista Brasileira de Biologia 59: 131-139.

575. Siman, S. E., A. C. Povey&E. Sheffield. 1999. Human health risks from fern spores-: A review. Fern Gazette 15: 275-288. [Pteridium]

576. Singh, H. B. 1999. Potential medicinal pteridophytes of India and their chemical constituents. Journal of Economic&Taxonomic Botany 23: 63-78.

577. Singh, N.&N. Sethunathan. 1999. Degradation of carbofuran by an enrichment culture developed from carbofuran-treated Azolla plot. Pesticide Science 55: 740-744.

578. Sinha, B. K., S. K. Srivastava&P. S. N. Rao. 1999. Phytogeographical notes on some rare pteridophyte taxa from Nicobar Islands, India. Malayan Nature Journal 53: 269-286.

579. Sinha, R. P., A. Vaishampayan&D. P. Haeder. 1999. Plant-cyanobacterial symbiotic somaclones as a potential bionitrogen-fertilizer for paddy agriculture: Biotechnological approaches. Microbiological Research 153: 297-307. [Azolla]

580. Siqueira, C. R.&P. G. Windisch. 1999. Pteridofitas da regiao Noroeste do Estado de Sao Paulo, Brasil: Dennstaedtiaceae. Acta Botanica Brasilica 12: 357-365.

581. Sivapalan, A., D. K. Mariam, P. G. Omar, H. Aslin&J. M. Mohd. 1999. New diseases of ornamental plants in Brunei Darussalam. Bulletin Oepp (Organisation Europeenne et Mediterraneenne Pour la Protection des Plantes) 29: 217-219.

582. Siwakoti, M.&P. Sharma. 1999. Ferns flora of eastern Nepal (Koshi zone). J. Econ. Taxon. Bot. 22: 601-608.

583. Sjamsuridzal, W., H. Nishida, H. Ogawa, M. Kakishima&J. Sugiyama. 1999. Phylogenetic positions of rust fungi parasitic on ferns: Evidence from 18S rDNA sequence analysis. Mycoscience 40: 21-27.

584. Skog, J. E. 1999. Report of the Committee for Fossil Plants: 2. Taxon 48: 817-819.

585. Skog, J. E.&R. Herbst. 1999. Phytogeographic distribution of mesozoic ferns. P. 175. In XVI International Botanical Congress - Abstracts.

586. Smith, A. R. 1999. Los helechos y sus aliodos de Guaramacal. Pp. 65-70. In N. L. Cuello (Ed.). Parque Nacional Guaramacal. UNELLEZ-Funcacion Polar, Caracas Venezuela. [Spanish]

587. Smith, A. R. 1999. Pteridophyte disjunctions between the Neotropics and Africa-Madagascar: vicariance or long- distance dispersal. P. 176. In XVI International Botanical Congress - Abstracts.

588. Smith, A. R., M. Kessler&J. Gonzales. 1999. New records of pteridophytes from Bolivia. American Fern Journal 89: 244-266.

589. Smith, L. H. Jr., J. P. Hill&D. Gadotti. 1999. Cloning and characterization of an alpha tubulin expressed in male gametophytes of the fern Ceratopteris richardii. Molecular Biology of the Cell 10 (Suppl.): 103a. [Abstract]

590. Smitha, H.&L. D'Souza. 1999. Effect of season on contamination and in vitro germination of the spores of Drynaria quercifolia. Indian Fern Journal 16: 30-34.

591. Soares, M. L. G. 1999. Structure and degree of perturbation of mangroves at Tijuca Lagoon, Rio de Janeiro, RJ, Brazil. Revista Brasileira de Biologia 59: 503-515. [Portuguese; Acrostichum]

592. Sokerina, E. V., T. Kohzuma&N. M. Kostic. 1999. Photoinduced electron transfer from Zn-substituted cytochrome c to fern plastocyanin: Evidence of multiple diprotein complexes. Journal of Inorganic Biochemistry 74: 300. [Abstract; Dryopteris crassirhizoma]

593. Sokoloff, D. D. 1999. New data on the floras of several white sea islands of Kandalaksha reserve (Murmansk Region). Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii 104: 43-44. [Russian; Dryopteris expansa, Equisetum variegatum]

594. Soltis, P. S., D. E. Soltis, P. G. Wolf, D. L. Nickrent, S. M. Chaw&R. L. Chapman. 1999. The phylogeny of land plants inferred from 18S rDNA sequences: Pushing the limits of rDNA signal- Molecular Biology&Evolution 16: 1774-1784.

595. Somvanshi, R., M. Kataria&A. K. Sharma. 1999. Comparative clinical, biochemical and pathological evaluation of bracken, Polystichum and Dryopteris ferns in rabbits. Indian Veterinary Medical Journal 23: 177-184. [Dryopteris juxtaposita, Polystichum squarrosum, Pteridium aquilinum]

596. Sousa, E., R. Sequeira, I. Moreira, A. Monteiro, T. Vasconcelos&J. Venade. 1999. Monfurado site: Mountain of Nogueirinha. Revista de Biologia (Lisbon) 17: 137-146. [Portuguese; Anogramma leptophylla]

597. Speck, T.&N. P. Rowe. 1999. Biomechanics of fossil plants: New insights into a lost world. Journal of Experimental Botany 50 (Suppl.): 68. [Abstract]

598. Speer, W. D.&K. W. Hilu. 1999. Relationships between two infraspecific taxa of Pteridium aquilinum (Dennstaedtiaceae): 1. Morphological evidence. Syst. Bot. 23: 305-312.

599. Speer, W. D., C. R. Werth&K. W. Hilu. 1999. Relationships between two infraspecific taxa of Pteridium aquilinum (Dennstaedtiaceae): 2. Isozyme evidence. Syst. Bot. 23: 313-325.

600. Statcenko, N. M. 1999. Zolni d-elementi paportey Rodiv Dryopteris Adans. I Onoclea L. Phytotherapia v Ukraini 3: 37-39.

601. Statcenko, N. M.&P. Rodini. 1999. Osmundaceae Bercht. et. Presl. Introduccia ta Zberezennya Roslinnogo Risnomanittya 2: 24-25. [Ukranian]

602. Stein, D. B.&Y. L. Qiu. 1999. Structural homologies at the genome level among pteridophytes. P. 233. In XVI International Botanical Congress - Abstracts.

603. Stein, W. 1999. Six-year growth of Douglas-fir saplings after manual or herbicide release from coastal shrub competition. U S Forest Service Research Paper PNW 500: 1-55.

604. Stevens, R. D.&C. R. Werth. 1999. Interpopulational comparison of dose-mediated antheridiogen response in Onoclea sensibilis. American Fern Journal 89: 221-231. [Pteridium aquilinum]

605. Stockey, R. A., H. Nishida&G. W. Rothwell. 1999. Permineralized ferns from the middle Eocene Princeton chert. I. Makotopteris princetonensis gen. et sp. nov. (Athyriaceae). International Journal of Plant Sciences 160: 1047-1055.

606. Stucky, J. M.&R. Coxe. 1999. The loss of a unique wetland in the Piedmont, North Carolina. Castanea 64: 287-298. [Woodwardia virginica]

607. Su, B.&B. D. Liu. 1999. A microecological study on adverseness-resistance of spermatozoid of Onoclea sensibilis L. Pp. 347-351. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

608. Suffredini, I. B., E. M. Bacchi&J. A. Sertie. 1999. Antiulcer action of Microgramma squamulosa (Kaulf.) Sota. Journal of Ethnopharmacology 65: 217-223.

609. Sugai, M. 1999. Developmental biology in fern gametophytes contributions by Japanes researchers. Plant Morphology 11: 32-41. [Japanese]

610. Sun, K. Q.&S. H. Deng. 1999. Discovery and significance of the genus Caulopteris from the Wuda area of Inner Mongolia. Acta Botanica Sinica 41: 484-486. [Chinese]

611. Sun, Q. Q., S. S. Xu, P. J. L, H. M. Guo&W. Q. Cao. 1999. Huperzine-A capsules enhance memory and learning performance in 34 pairs of matched adolescent students. Acta Pharmacologica Sinica 20: 601-603. [Huperzia serrata]

612. Sun, W. Q., X. P. Li&B. L. Ong. 1999. Preferential accumulation of D-pinitol in Acrostichum aureum gametophytes in response to salt stress. Physiologia Plantarum 105: 51-57.

613. Sun, Z. Y., Y. L. Han, F. Q. Zhou&J. X. Li. 1999. Studies on the morphology and anatomy of Lycopodioides from Shandong Province. Pp. 335-343. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

614. Suominen, O., K. Danell&J. P. Bryant. 1999. Indirect effects of mammalian browsers on vegetation and ground-dwelling insects in an Alaskan floodplain. Ecoscience 6: 505-510. [Equisetum]

615. Svensson, M.&P. Engstrom. 1999. MADS-Box genes from Lycopodium annotinum. P. 337. In XVI International Botanical Congress - Abstracts.

616. Szarek, I.&K. Trebacz. 1999. The role of light-induced membrane potential changes in guttation in gametophytes of Asplenium trichomanes. Plant&Cell Physiology 40: 1280-1286.

617. Sztein, A. E., J. D. Cohen, I. Garcia De La Fuente&T. J. Cooke. 1999. Auxin metabolism in mosses and liverworts. American Journal of Botany 86: 1544-1555. [Ceratopteris richardii]

618. Tabarelli, M.&W. Mantovani. 1999. Regeneration of a neotropical montane forest following slash-and-burn (Sao Paulo-Brazil). Revista Brasileira de Biologia 59: 239-250. [Portuguese, Pteridium]

619. Takamiya, M. 1999. Natural history and taxonomy of Isoetes (Isoetaceae). Acta Phytotaxonomica et Geobotanica 50: 101-138. [Japanese]

620. Takamiya, M., C. Takaoka&N. Ohta. 1999. Cytological and reproductive studies on Japanese Diplazium (Woodsiaceae: Pteridophyta): Apomictic reproduction in Diplazium with evergreen bi- to tripinnate leaves. Journal of Plant Research 112: 419-436.

621. Talukdar, H.&H. S. Athokpam. 1999. Study of certain chemical properties of soil and water on the growth of Azolla. International Journal of Tropical Agriculture 17: 165-171.

622. Tan, K. H., Z. Akbar&T. H. Kunz. 1999. Roost selection and social organisation in Cynopterus horsfieldi (Chiroptera: Pteropodidae). Malayan Nature Journal 53: 295-298. [Asplenium nidus]

623. Tanaka, T.&T. Katoh. 1999. Distribution of Kouyawarabi (Onoclea sensibilis L.) infested with Pseudomonas plantarii in Yamagata Prefecture and survival of the bacterium in plants. Annals of the Phytopathological Society of Japan 65: 487-489. [Japanese]

624. Tang, L. F., H. M. Zhong&J. Chen. 1999. Variation in in vivo polyphenol oxidase activity of four Azolla strains under different illumination conditions. Acta Phytophysiologica Sinica 25: 98-102. [Chinese]

625. Taylor, E. L., T. N. Taylor&B. J. Axsmith. 1999. Phylogeny of Permian and Triassic seed ferns: new data from Gondwana. P. 200. In XVI International Botanical Congress - Abstracts.

626. Therrien, F., G. D. Hoke&D. E. Fastovsky. 1999. Reconstruction of theropod paleoenvironments in the Chinle Formation of Petrified Forest National Park, Arizona. Journal of Vertebrate Paleontology Suppl. 3: 80A. [Abstract]

627. Therrien, J. P., C. H. Haufler&P. Korall. 1999. Phylogeny and biogeography of Selaginella subg. Tetragonostachys. P. 120. In XVI International Botanical Congress - Abstracts.

628. Thomas, B. A. 1999. Some commercial uses of pteridophytes in Central America. American Fern Journal 89: 101-105. [Polypodium leucotomos, Rumohra adiantiformis]

629. Thomaz, S. M., L. M. Bini, M. C. de Souza, K. K. Kita&F. M. Camargo Antonio. 1999. Aquatic macrophytes of Itaipu Reservoir, Brazil: Survey of species and ecological considerations. Brazilian Archives of Biology&Technology 42: 15-22. [Salvinia auriculata]

630. Tibert, N. E.&D. B. Scott. 1999. Ostracodes and agglutinated foraminifera as indicators of paleoenvironmental change in an Early Carboniferous brackish bay, Atlantic Canada. Palaios 14: 246-260.

631. Tidwell, W. D., S. R. Ash, B. S. Kues, K. K. Kietze&S. G. Lucas. 1999. Early Permian plant megafossils from Carrizo Arroyo, Central New Mexico; New Mexico Geological Society Guidebook, 50th Field Conference, Albuquerque Geology. 15-20.

632. Tidwell, W. D.&J. E. Skog. 1999. Two new species of Solenostelopteris from the Upper Jurassic Morrison Formation in Wyoming and Utah. Review of Palaeobotany&Palynology 104: 285-298.

633. Tilak, M.&K. Shivappashetty. 1999. Effect of different nutrients on the growth of algal symbionts. Indian Journal of Plant Physiology 4: 127-129. [Azolla caroliniana, A. filiculoides, A. mexicana, A. pinnata]

634. Tilak, M.&K. Shivappashetty. 1999. Effect of different physical and chemical parameters on the growth of algal symbionts. Indian Journal of Plant Physiology 4: 224-226. [Azolla caroliniana, A. filiculoides, A. mexicana, A. microphylla, A. pinnata]

635. Tiwari, R. S. 1999. The Permian-Triassic boundary, mass extinction and pattern of pteridophytic occurrence across the boundary. Indian Fern Journal 16: 75-86.

636. Tjatur, R. F. S., T. Saito&H. Satoh. 1999. The hemolytic activity of bracken extracts in guinea pigs. Journal of Veterinary Medical Science 61: 129-133. [Pteridium]

637. Tori, M., T. Shimoji, S. Takaoka, K. Nakashima, M. Sono&W. A. Ayer. 1999. Structure of oxolucidine A, a Lycopodium alkaloid. Tetrahedron Letters 40: 323-324. [Lycopodium lucidulum]

638. Tripathi, R. P. 1999. Correlation of dispersed megaspores with the associated palaeozoic and mesozoic pteridophytes. Indian Fern Journal 16: 38-43.

639. Tryon, R.&A. Tryon. 1999. Observations on the phytogeography of Eastern North American ferns. Pp. 250-273. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

640. Tsai, C. W.&S. M. Wolniak. 1999. A linkage between mitosis and blepharoplast formation during de novo synthesis of basal bodies in spermatocytes of Marsilea. Molecular Biology of the Cell 10 (Suppl.): 386a. [Abstract]

641. Tsvelev, N. N. 1999. On the northern species of the genus Huperzia (Huperziaceae). Bot. Zhurn. 84: 81-85. [Russian]

642. Tuomisto, H. 1999. Habitat specialization in rain forest pteridophytes: does it contribute to speciation- P. 255. In XVI International Botanical Congress - Abstracts.

643. Turnau, K., M. Ronikier&J. Unrug. 1999. Role of mycorrhizal links between plants in establishment of liverworts thalli in natural habitats. Acta Societatis Botanicorum Poloniae 68: 63-68. [Dryopteris carthusiana]

644. Turnwald, S., R. Scheuerlein&M. Furuya. 1999. Phytochrome-dependent modulation and re-induction of growth of the first rhizoid in Dryopteris paleacea Sw. Planta (Berlin) 208: 98-106.

645. Tyler, T. 1999. On the flora of Scanian volcanoes - bryophytes and ferns on basalt. Svensk Botanisk Tidskrift 93: 33-50. [Swedish; Asplenium trichomanes, Woodsia ilvensis]

646. Tyson, M. J., E. Sheffield&T. V. Callaghan. 1999. Uptake, transport and seasonal recycling of 134Cs applied experimentally to bracken (Pteridium aquilinum L. Kuhn). Journal of Environmental Radioactivity 46: 1-14.

647. Tyson, M. J., E. Sheffield&T. V. Callaghan. 1999. Uptake, allocation, accumulation and ecological implications of 85Sr in bracken (Pteridium aquilinum L. Kuhn). Journal of Environmental Radioactivity 46: 15-25.

648. Tzvelev, N. N. 1999. On the northern species of the genus Huperzia (Huperziaceae). Botanicheskii Zhurnal (St. Petersburg) 84: 81-85. [Russian]

649. Tzvelev, N. N. 1999. On the size and nomenclature of some genera of the vascular plants of European Russia. Botanicheskii Zhurnal (St. Petersburg) 84: 109-118. [Russian]

650. Ubugunov, L. L.&M. G. Merkusheva. 1999. Biochemical and mineral composition of dominant plants of floodplain motley grasses community depending on the nitrogen nutrition. Agrokhimiya 7: 51-59. [Russian; Equisetum arvense]

651. Uehara, K. 1999. An ultrastructural study of microspore wall morphogenesis in Selaginella tamariscina (Beauv.) Spring (Selaginellaceae). Journal of Japanese Botany 74: 344-352.

652. Uehara, K.&E. Nishino. 1999. Ultrastructural study of spore wall development in Thelypteris decursive-pinnata (Thelypteridaceae). Technical Bulletin of Faculty of Horticulture Chiba University 53: 19-28. [Japanese]

653. Ueki, K., P. H. Kimura, K. Omura, G. Okamoto&K. Hirano. 1999. Effectiveness of artificial pollination in Vitis coignetiae Pulliat. American Journal of Enology&Viticulture 50: 226. [Abstract; Lycopodium]

654. Uheda, E., S. Kitoh&N. Shiomi. 1999. Response of six Azolla species to transient high-temperature stress. Aquatic Botany 64: 87-92.

655. Ukpong, I. E.&J. N. Essien. 1999. Principal components analysis of data from the Stubbs Creek Forest Reserve I: the vegetation subsystem. Environmental Analar 4: 268-283.

656. Ukpong, I. E.&H. Ojo-Ede. 1999. Hydrocarbon pollution of soils and water in Warri Delta State Nigeria: a synopsis. Transactions of the Nigerian Society for Biological Conservation 8: 37-40.

657. Unrug, J.&K. Turnau. 1999. Mycorrhiza of Dryopteris carthusiana in southern Poland. Acta Mycologica 34: 305-314.

658. Urabe, K., T. Nadamoto, M. Kawamura&K. Yasumoto. 1999. Deodorization activity of wild grasses against methyl mercaptan. Nippon Shokuhin Kagaku Kogaku Kaishi 46: 484-486. [Japanese; Equisetum arvense]

659. Vacek, S., M. Bastl&J. Leps. 1999. Vegetation changes in forests of the Krkonose Mts. over a period of air pollution stress (1980-1995). Plant Ecology 143: 1-11. [Athyrium distentifolium]

660. Vaithiyanathan, P.&C. J. Richardson. 1999. Macrophyte species changes in the Everglades: Examination along a eutrophication gradient. Journal of Environmental Quality 28: 1347-1358. [Acrostichum danaeifolium]

661. van Konijnenburg-van Cittert, J. H. A. 1999. On the evolution of fern spore architecture. Pp. 273-287. In M. K. Kurmann &A. R. Hemsley (Eds.). The evolution of plant architecture. Royal Botanic Garden, Kew UK.

662. van Konijnenburg-van Cittert, J. H. A.&H. S. Morgans. 1999. The Jurassic flora of Yorkshire, Palaeont. Assoc. Field Guide to fossils, No. 8. Palaeont. Assoc., London UK.

663. van Konijnenburg-van Cittert, J. H. A.&S. Schmeissner. 1999. Fossil insect eggs on Lower Jurassic plant remains from Bavaria (Germany). Palaeogeography Palaeoclimatology Palaeoecology 152: 215-223.

664. Vangerow, S., T. Teerkorn&V. Knoop. 1999. Phylogenetic information in the mitochondrial nad5 gene of pteridophytes: RNA editing and intron sequences. Plant Biology (Stuttgart) 1: 235-243.

665. Vasheka, O. V., N. M. Stetsenko&N. P. Pohorila. 1999. The lectins of Dryopteris Adans.-fern species. Ukrainskii Biokhimicheskii Zhurnal 71: 93-95. [Ukrainian; Dryopteris bushiana, D. laeta, D. pseudomas]

666. Vasudeva, S. M. 1999. Economic importance of pteridophytes. Indian Fern Journal 16: 130-155.

667. Vega, I. L., O. A. Ayala, D. E. Organista&J. J. Morrone. 1999. Historical relationships of the Mexican cloud forests: A preliminary vicariance model applying Parsimony Analysis of Endemicity to vascular plant taxa. Journal of Biogeography 26: 1299-1305.

668. Vendan, R. T., G. Gopalaswamy&S. A. Raj. 1999. Dual cropping of Azolla substitutes for second topdressing of N in rice. International Rice Research Notes 24: 22.

669. Verdcourt, B. 1999 . Flora of Tropical East Africa: Actiniopteridaceae, Davalliacea, Marattiaceae, Azollaceae, Equisetaceae, Vittariaceae, Psilotaceae, Osmundaceae, Parkeraceae. A. A. Balkema, Rotterdam.

670. Verma, S. C. 1999. Publications on Pteridophytes by S. C. Verma. Indian Fern Journal 16: 173-177.

671. Verma, S. C., A. Kaur&P. M. Selvin. 1999. Experimental studies on the gametophyte generation of homosporous ferns II. Sexuality, gametangial sequences and mating systems in Pityrogramma calomelanos and Gymnopteris vestita. Indian Fern Journal 16: 55-71.

672. Veys, P., L. Waterkeyn, A. Lejeune&C. van Hove. 1999. The pore of the leaf cavity of Azolla: Morphology, cytochemistry and possible functions. Symbiosis 27: 33-57.

673. Vitousek, P. 1999. Nutrient limitation to nitrogen fixation in young volcanic sites. Ecosystems 2: 505-510. [Dicranopteris linearis]

674. Voge, M. 1999. 240 millionen fahre Isoetes: Das Seebrachsen-Kraut Isoetes lacustris L. in Niedersachsen Beitr. Naterknde Niedersachsens 52: 81-86. [German]

675. Voge, M. 1999. The quillwort Isoetes lacustris L. in some German lakes: Number of leaves and spore production. Tuexenia 19: 211-217. [German]

676. Vogel, J. C., J. A. Barrett, F. J. Rumsey&M. Gibby. 1999. Identifying multiple origins in polyploid homosporous pteridophytes. Pp. 101-117. In P. M. Hollingsworth, R. M. Bateman&R. J. Gornall (Eds.). Molecular systematics and plant evolution. Taylor and Francis, London.

677. Vogel, J. C., J. A. Barrett, F. J. Rumsey&M. Gibby. 1999. Multiple origins in polyploid ferns fallacy or fact- P. 256. In XVI International Botanical Congress - Abstracts.

678. Vogel, J. C.&F. J. Rumsey. 1999. On the status of Diphasiastrum oellgaardii (Lycopodiaceae, Pteridophyta). Feddes Repertorium 110: 439-445.

679. Vogel, J. C., F. J. Rumsey, S. J. Russell, C. J. Cox, J. S. Holmes, W. Bujnoch, C. Stark, J. A. Barrett&M. Gibby. 1999. Genetic structure, reproductive biology and ecology of isolated populations of Asplenium csikii (Aspleniaceae, Pteridophyta). Heredity 83: 604-612.

680. Vogel, J. C., F. J. Rumsey, J. J. Schneller, J. A. Barrett&M. Gibby. 1999. Where are the glacial refugia in Europe- Evidence from pteridophytes. Biological Journal of the Linnean Society 66: 23-37. [Asplenium]

681. von Konrat, M. J., J. E. Braggins&P. J. de Lange. 1999. Davallia (Pteridophyta) in New Zealand, including description of a new subspecies of D. tasmanii. New Zealand Journal of Botany 37: 579-593.

682. Vozenin-Serra, C.&D. De Franceschi. 1999. Flora of the upper Triassic of Vietnam (carboniferous basins of Quang-Nam and Hongay). Palaeontographica Abteilung B Palaeophytologie 249: 1-62. [French]

683. Wada, M., A. Kadota, T. Kanegae, K. Nozue&T. Kiyosue. 1999. Phytochrome function in Adiantum gametophytes. P. 77. In XVI International Botanical Congress - Abstracts.

684. Wade, P. M. 1999. The impact of human activity on the aquatic macroflora of Llangorse Lake, South Wales. Aquatic Conservation 9: 441-459. [Equisetum fluviatile]

685. Wagner, W. H. Jr. 1999. Historical views and current analyses of pteridophyte reticulistics. P. 256. In XVI International Botanical Congress - Abstracts.

686. Wagner, W. H. Jr., F. S. Wagner, D. D. Palmer&R. W. Hobdy. 1999. Taxonomic notes on the pteridophytes of Hawaii-II. Contributions From the University of Michigan Herbarium 22: 135-187.

687. Walker, I., R. Miyai&M. D. A. de Melo. 1999. Observations on aquatic macrophyte dynamics in the reservoir of the Balbina hydroelectric powerplant, Amazonas State, Brazil. Acta Amazonica 29: 243-265. [Salvinia]

688. Wallace, J. W. 1999. Chemotaxonomy of the Hymenophyllaceae. P. 338. In XVI International Botanical Congress - Abstracts.

689. Wang, S. J., C. S. Li&B. L. Tian. 1999. Anatomy of a new species of Scolecopteris (Marattiales) from early stage of Early Permian in China. Acta Botanica Sinica 41: 433-438. [Chinese]

690. Wang, X. F.&L. Cao. 1999. Palyno-stratigraphic study of the upper Cretaceous Yuliangzi Formation, Jiayin, Heilongjiang. Acta Micropalaeontologica Sinica 16: 190-194. [Chinese]

691. Wang, X. Y.&P. S. Wang. 1999. Notes on the species of Asplenium L. from Guizhou, China. Pp. 76-81. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

692. Wang, Y. 1999. Fertile organs and in situ spores of Marattia asiatica (Kawasaki) Harris (Marattiales) from the Lower Jurassic Hsiangchi Formation in Hubei, China. Review of Palaeobotany&Palynology 107: 125-144.

693. Wang, Y., G. Guignard&G. Barale. 1999. Morphological and ultrastructural studies on in situ spores of Oligocarpia (Gleicheniaceae) from the Lower Permian of Xinjiang, China. International Journal of Plant Sciences 160: 1035-1045.

694. Wang, Y. D., G. Guignard&G. Barale. 1999. Ultrastructure of Oligocarpia (Gleicheniaceae) spores in situ from the permian of Xinjiang, China. P. 337. In XVI International Botanical Congress - Abstracts.

695. Wang, Y. Q., J. X. Sun, F. Q. Guo, Z. Y. Zhang, H. M. Chen, L. Xu&G. Y. Cao. 1999. Study on binding of REEs with water-soluble polysaccharides in fern. Biological Trace Element Research 71-72: 103-108.

696. Wang, Z. Q. 1999. Gigantonoclea: An enigmatic Permian plant from North China. Palaeontology 42: 329-373.

697. Wang, Z. R. 1999. The genera of Gymnocarpium, Cystopteris, Acystopteris, Cystoathyrium, Pseudocystopteris, Lunathyrium, Dryoathyrium, Neoathyrium, Athyrium, Anisocampium, Kuniwatsukia (Athyriaceae). In W. M. Chu (Ed.). Flora Reipublicae Popularis Sinicae, Tomus 3 (2). Science Press, Beijing.

698. Wang, Z. R. 1999. The analysis of genetic diversity of Pteris vittata populations from the Guilin area compared to the populations from Naning. Journ Guangxi Agric. and Biol. Science 18 (Sup.): 148-152.

699. Wang, Z. R. 1999. The genetic diversity of Pteris vittata populations from the Liuzhou area compared with Naning populations. Journ. Guangxi Agric. and Biol. Science 18 (Sup.): 153-157. 700. Wardell-Johnson, G. 1999. A new record for the fern flora of south-western Australia: A single plant of Histiopteris incisa from Mt Lindesay. Nuytsia 13: 259-260.

701. Warne, T. R., L. G. Hickok, C. E. Sams&D. L. Vogelien. 1999. Sodium/potassium selectivity and pleiotropy in stl2, a highly salt-tolerant mutation of Ceratopteris richardii. Plant, Cell&Environment 22: 1027-1034.

702. Watanabe, I., M. Sawamoto, A. Nakagawa, Y. Kowyama&T. Suzuki. 1999. Diversity of Azolla japonica in Japan, analyzed by random amplified polymorphic DNA. Journal of Japanese Botany 74: 142-149.

703. Watkins, J. E.&D. R. Farrar. 1999. Origin and taxonomic affinities of Thelypteris pilosa var. alabamensis (Thelypteridaceae). P. 337. In XVI International Botanical Congress - Abstracts.

704. Wen, C. K., R. Smith&J. A. Banks. 1999. ANI1: A sex pheromone-induced gene in Ceratopteris gametophytes and its possible role in sex determination. Plant Cell 11: 1307-1317.

705. Westhoff, V.&A. Wagemakers. 1999. Fir clubmoss (Huperzia selago (L.) Schrank and Mart.) found back in the Province of Noord-Brabant. Gorteria 25: 136-139.

706. Whittier, D. P.&J. C. Pintaud. 1999. Spore germination and early gametophyte development in Stromatopteris. American Fern Journal 89: 142-148.

707. Widen, C. J., C. R. Fraser-Jenkins, T. Reichstein&J. Sarvela. 1999. A survey of phenolic compounds in Dryopteris and related fern genera. Part II. Phloroglucinol derivatives in subgenus Dryopteris (Pteridophyta, Dryopteridaceae). Acta Botanica Fennici 164: 1-56.

708. Wikstrom, N.&P. Kenrick. 1999. Diversification and relationships of extant homosporous lycopds. P. 120. In XVI International Botanical Congress - Abstracts.

709. Wikstrom, N., P. Kenrick&M. Chase. 1999. Epiphytism and terrestrialization in tropical Huperzia (Lycopodiaceae). Plant Systematics&Evolution 218: 221-243.

710. Wilson, K. A. 1999. Ontogeny of the sporangia of Sphaeropteris cooperi. American Fern Journal 89: 204-214.

711. Windisch, P. G.&F. R. Nonato. 1999. Pteridofitas do Estado de Mato Grosso Brasil: Vittariaceae. Acta Botnaica Brasilica 12: 290-297. [Portuguese]

712. Wittig, B.&F. Hellberg. 1999. Regeneration of Cross leaved Heath and Wet Heath Communities in the Nature Reserve "Waller Moor" (Northwestern Germany). Abhandlungen Natwissenschaftlichen Verein Zu Bremen 44: 637-655. [German; Ophioglossum vulgatum]

713. Wolf, P. G., H. Schneider&T. A. Ranker. 1999. The roles of vicariance and long-distance dispersal in the origin of fern distributions. P. 199. In XVI International Botanical Congress - Abstracts.

714. Wolf, P. G., S. D. Sipes, M. R. White, M. L. Martines, K. M. Pryer, A. R. Smith&K. Ueda. 1999. Phylogenetic relationships of the enigmatic fern families Hymenophyllopsidaceae and Lophosoriaceae: Evidence from rbcL nucleotide sequences. Plant Systematics&Evolution 219: 263-270.

715. Wolkowycki, D. 1999. Azolla filiculoides (Pteridophyta, Azollaceae) in Poland. Fragmenta Floristica et Geobotanica Series Polonica 6: 165-170. [Polish]

716. Wong, H. K. T., A. Gauthier&J. O. Nriagu. 1999. Dispersion and toxicity of metals from abandoned gold mine tailings at Goldenville, Nova Scotia, Canada. Science of the Total Environment 228: 35-47. [Equisetum rubiaceae, E. sylvaticum]

717. Wong, K. M., J. B. Sugau, J. T. Pereira, B. S. Parris&B. C. Tan. 1999. New records of Bornean plants from the Semporna Island off Sabah's east coast. Sandakania 13: 31-40.

718. Wu, S. F. 1999. Studies on pteridophyte floristic components and characters of Hunan Province. Pp. 274-287. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

719. Wu, S. H. 1999 . Flora reipublicae popularis Sinicae: tomus 4(2). Pteridophyta: Aspleniaceae, Pleurosoriopsidaceae, Onocleaceae, Woodsiaceae, Blechnaceae, Peranemaceae. Science Press, Beijing. 265 pp.

720. Wyatt, O. W., L. B. Brubaker&P. M. Anderson. 1999. Late Quaternary vegetational history of the Howard Pass area, northwestern Alaska. Canadian Journal of Botany 77: 570-581.

721. Xia, Q.&P. S. Wang. 1999. A bipinnate monstrosity of Blechnum orientale L. discovered in Guizhou Province. Pp. 344-346. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

722. Xie, G. F.&J. H. Li. 1999. A preliminary research on the pteridophytes around Dongting Lake, Hunan Province. Pp. 288-293. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

723. Xing, F., R. T. Corlett&L. K. C. Chau. 1999. Study on the flora of Hong Kong. Journal of Tropical&Subtropical Botany 7: 295-307. [Chinese]

724. Xu, Y. L., Y. B. Ma&J. Xiong. 1999. Flavonoids from Onychium contiguum. Acta Botanica Yunnanica 21: 386-392. [Chinese]

725. Xu, Y. L., X. Zheng&Y. N. He. 1999. Flavonoids of Onychium lucidum. Acta Botanica Yunnanica 21: 497-504. [Chinese]

726. Yang, X., J. Li, T. Wang, F. Li&S. Han. 1999. Study on the pteridophytic flora of Mountain Dabie, Henan . J. Wuhan Bot. Res. 17: 153-157.

727. Yang, Y., C. Xie, Y. He, M. Wei&J. Wu. 1999. An endangered precious and rare new old huge tree-fern discovered in Yunnan China: Alsophila pingbianica. J. Wuhan Bot. Res. 17: 211-214.

728. Yasmeen, A. 1999. Mycoflora associated with fern leaf litter. Proceedings of the National Academy of Sciences India Section B (Biological Sciences) 69: 75-77. [Adiantum incisum, Asplenium nidus, Polystichum squarrosum, Pteris cretica]

729. Yatabe, Y., H. Nishida&N. Murakami. 1999. Phylogeny of Osmundaceae inferred from rbcL nucleotide sequences and comparison to the fossil evidences. Journal of Plant Research 112: 397-404.

730. Yatskievych, G. 1999. Steyermark's Flora of Missouri, 2nd edition, Vol. 1. Missouri Dept. of Conservation, Jefferson City, MO.

731. Yatskievych, G.&R. Riba. 1999. Phanerophlebia. In A. C. Consejo Nacional de la Flora de Mexico (Ed.). Flora de Mexico Volume 6, Fasc. 4. Consejo Nacional de la Flora de Mexico, Mexico City.

732. Yin, F. J.&H. W. Hou. 1999. Middle Jurassic sporopollen assemblage from the Yan' an Formation in Binxian County, Shaanxi Province and its significance. Acta Botanica Sinica 41: 325-329. [Chinese]

733. Young, K. R.&P. W. G. Sale. 1999. Control of bracken (Pteridium esculentum) in Tasmania using wiper application of metsulfuron methyl and glyphosate. Plant Protection Quarterly 14: 63-67.

734. Zanoni, T. A.&W. R. Buck. 1999. Navassa Island and its flora. 2. Checklist of the vascular plants. Brittonia 51: 389-394.

735. Zavialova, N. 1999. Exine ultrastructure of seed ferns. P. 336. In XVI International Botanical Congress - Abstracts.

736. Zenkteler, E. 1999. Sporophytic lethality in lowland populations of Osmunda regalis L. in Poland. Acta Biologica Cracoviensia Series Botanica 41: 75-83.

737. Zenkteler, E., H. Kwasna&P. Barzyk. 1999. Fungistatic activity of internal secretory glands of ferns of the genus Dryopteris. Scientific Symposium. Biodiversity in European plant pathology of the turn of the centuries. X General Assemby of PPS Members PO2NAN: 7-9.09.1999. [Abstract]

738. Zenkteler, E.&J. Lijuan. 1999. A comparative analysis of the reproductive biology of two populations of Pteris cretica. Acta Biologica Cracoviensia Series Botanica 41 (Suppl. 1): 27. [Abstract]

739. Zenner, G. 1999. Weitere Untersuchungen an Polypodium (Polypodiaceae, Pteridophyta) aus dem Oberallga. Mitt. Naturwiss. Arbeitskr. Volkshochsch. Kempten (Allgau) 36: 17-28.

740. Zentella, R., J. O. Mascorro-Gallardo, P. Van Dijck, J. Folch-Mallol, B. Bonini, C. Van Vaeck, R. Gaxiola, A. A. Covarrubias, J. Nieto-Sotelo, J. M. Thevelein&G. Iturriaga. 1999. A Selaginella lepidophylla trehalose-6-phosphate synthase complements growth and stress-tolerance defects in a yeast tps1 mutant. Plant Physiology (Rockville) 119: 1473-1482.

741. Zhang, L. B.&H. S. King. 1999. On the taxonomy of Phlegmariurus (Herter) Holub (Huperziaceae) sect. Huperzioides H. S. Kung et L. B. Zhang (sect. nov.) in China. Acta Phytotaxonomica Sinicae 37: 40-53.

742. Zhang, L. B.&H. S. Kung. 1999. A new section of the fern genus Polystichum Roth Sect. Neopolystichum Ching. Acta Phytotaxonomica Sinicae 37: 81-86.

743. Zhang, L. B.&H. S. Kung. 1999. An outline of the taxonomy and distribution of Equisetaceae in China. Pp. 82-88. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

744. Zhang, L. B.&H. S. Kung. 1999. The systematics of the fern-allies (excl. Selaginellaceae) of China. P. 339. In XVI International Botanical Congress - Abstracts.

745. Zhang, L. J.&X. F. Wang. 1999. Important triassic palynomorphs from the Tarim Basin of Xinjiang. Acta Micropalaeontologica Sinica 16: 393-404. [Chinese]

746. Zhang, X. C. 1999. The genus Oleandra Cav. In China. Pp. 89-95. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

747. Zhang, X. C. 1999. An index to the scientific names in honor of R. C. Ching. Pp. 432-433. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

748. Zhang, X. C. 1999. An index to the scientific names authored by R. C. Ching. Pp. 434-503. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

749. Zhang, X. C. 1999. Antrophyaceae, Vittariaceae. Pp. 4-35. In W. M. Chu (Eds.). Flora Reipublicae Popularis Sinicae 3(2).

750. Zhang, Y. J.&H. D. Li. 1999. Studies on the foliar epidermal features in Pteridaceae and related families. Pp. 352-356. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

751. Zhao, H. W.&X. Y. Li. 1999. Ginkgolide A, B, and huperzine A inhibit nitric oxide production from rat C6 and human BT325 glioma cells. Acta Pharmacologica Sinica 20: 941-943. [Huperzia serrata]

752. Zhao, M., J. R. Duncan&D. Sanyahumbi. 1999. Competitive sorption of multiple heavy metals by Azolla filiculoides. Resource&Environmental Biotechnology 2: 173-183.

753. Zhao, M., J. R. Duncan&R. P. Van Hille. 1999. Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides. Water Research 33: 1516-1522.

754. Zhao, Z. W. 1999. Population composition and seasonal variation of VA mycorrhizal fungi spores in the rhizosphere soil of four pteridophytes. Acta Botanica Yunnanica 21: 437-441. [Chinese]

755. Zheng, W. L. 1999. Analyses of the floristic features on the families, genera of Pteridophyta from the Big Bend region at Yalu Tsangpo (River), Xizang (Tibet), China. Acta Botanica Yunnanica 21: 43-50. [Chinese]

756. Zheng, W. W., M. Nilsson, B. Bergman&U. Rasmussen. 1999. Genetic diversity and classification of cyanobacteria in different Azolla species by the use of PCR fingerprinting. Theoretical&Applied Genetics 99: 1187-1193.

757. Zhou, F. Q., C. F. Gao, Z. R. Zhang&J. X. Li. 1999. Studies on the morphology and anatomy of Hypodematiaceae from Shandong and its taxonomic significance. Pp. 357-369. In X. C. Zhang &K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

758. Zhou, F. Q., S. Y. Zhang, J. X. Li & J. Li. 1999. Studies on the morphology and anatomy of Cyrtomium from Shandong Province. Pp. 370-379. In X. C. Zhang & K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

759. Zhou, T. S., Y. Wang, P. We & Z. T. Wang. 1999. Phylogeny of polypodiod ferns inferred from rbcL and atpB chloroplast gene sequences. P. 336. In XVI International Botanical Congress - Abstracts.

760. Zhu, W. Q. & P. Kenrick. 1999. A Zosterophyllum-like plant from the Lower Devonian of Yunnan Province, China. Review of Palaeobotany & Palynology 105: 111-118.

761. Zhu, Z. Y. 1999. The economic pteridophytes from Emei Mountain, China. Pp. 417-420. In X. C. Zhang & K. H. Shing (Eds.). Ching Memorial Volume, A collection of pteridological papers published to commemorate the centenary of the birth of Professor Ren-Chang Ching. China Forestry Publishing House, Beijing.

762. Zimmer, B. 1999. Report of the Committee for Pteridophyta: 14 . Taxon 48: 133-134.