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Position: Home > Articles > Study on the Pteridophyte Flora in Wugong Mountain Central South Forest Inventory and Planning 2016,35 (2) 63-67+74

武功山地区蕨类植物区系研究

作  者:
孙林;肖佳伟;陈功锡
单  位:
吉首大学植物资源保护与利用湖南省高校重点实验室
关键词:
区系;蕨类植物;武功山
摘  要:
通过野外实地调查和查阅相关文献,分析武功山地区蕨类植物区系组成。结果表明:1武功山地区共有蕨类植物38科84属257种,鳞毛蕨科、水龙骨科、金星蕨科、蹄盖蕨科组成武功山的优势科,占武功山地区总属数42.9%、总种数的51.0%,鳞毛蕨属、铁角蕨属、耳蕨属、卷柏属组成了武功山地区的优势属,占总种数的26.5%;单种属、少种属较多,显示生境的特殊性,抑制了属种分化;本区属中国-日本区系的组成部分。2属的地理成分以热带成分为主,占总属数的80.9%(扣除非世界分布),显示明显的热带亲缘;种的地理成分以温带成分占优势,占总种数的61.4%(扣除非世界分布),表明本区系从温带向热带过度的趋势。
译  名:
Study on the Pteridophyte Flora in Wugong Mountain
作  者:
SUN Lin;XIAO Jiawei;CHEN Gongxi;Key Laboratory of Plant Resources Conservation and Utilization,Jishou University,College of Hunan Province;
关键词:
Wugong mountain;;pteridophyte;;flora
摘  要:
Through field investigation and reference related literature in Wugong mountain,comparatively intensive analysis on the characteristics of Pteridophyte floras,two main conclusions were as followed: 1257 species of 84 genera in38 families were found in the area,and the dominant families were Dryopteridaceae,Polypodiaceae,Athyriaceae,Selaginella,etc,the main genera( 26. 5%) were Dryopteris,Athyrium,Asplenium,etc; nevertheless,no monotypicbut rich in rare-species genera,which showed the specificity of the area' s habitats or some other possibilities. that inhibit the differentiation of genus; the area is the part of the flora of Sino-Japan. 2 the analysis of geographic compositions of genus,showed the dominant of tropical elements( 80. 9%),which indicated the close connection to the tropic,but on species,,the temperate geographical elements( 61. 4%) were dominant,and show the trend of the transition from temperate to tropical.

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