河南大别山蕨类植物区系的研究
STUDY ON THE PTERIDOPHYTIC FLORA OF MOUNTAIN DABIE,HENAN
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摘要: 初步探讨了河南大别山蕨类植物区系的地理特点,结果表明:本区系有蕨类植物142 种,隶属于29 科67 属,优势成分以鳞毛蕨科、水龙骨科、蹄盖蕨科等系统演化上较高级的类群为主。组成本区系的成分来源不同,南北兼容,与我国秦岭、黄山相似率最高。研究结果与秦仁昌在中国蕨类植物分区中将河南大别山划分为华中-华东区的观点一致。Abstract: The floristic phytogeographical features of the ferns and fern allies in the Mt.Dabie are discussed.The results are as follows:The pteridophytic flora comprises 142 species,67 genera, 29 families.Some phylogenically higher taxa including Dryopteridaceae,Polypodiaceae and Athyriaceae etc.constitute the demonstrative composition of the flora.The elements in the flora are from different floras but most similar to the floral elements in Mt.Qinling and Mt.Huangshan flora.The results support Ching Renchang's view that the pteridophyte floristics in Mt.Dabie of Henan Province should be classified into Central and East Chinese fern flora.