玉舍国家森林公园蕨类植物的区系研究

Study on Floristic Composition of Pteridoflora in Yushe National Forest Park

为了解贵州玉舍国家森林公园蕨类植物区系组成和地理成分,对其进行了调查、分析。结果表明:玉舍国家森林公园共有蕨类植物30科56属107种(含变种),其中,姬蹄盖蕨[Athyrium. subrigen-scens (Hayata) Hayata ex H.Ito]为中国大陆新分布,优势科为鳞毛蕨科(Dryopteridaceae)、水龙骨科(Polypodiaceae)、蹄盖蕨科(Athyriaceae)、金星蕨科(Thypteridaceae),优势属为蹄盖蕨属(Athyrium)、鳞毛蕨属(Dryopteris)、卷柏属(Selaginella)、凤了蕨属(Coniogramme);在科、属水平上,以热带分布的泛热带成分为主,而种的地理分布则以温带分布的东亚成分和中国特有成分占绝对优势,分别为49.02%和30.39%;在区系关系上,与雷公山、红水河沟谷、三清山自然保护区区系关系比较密切,与苍山、梧桐山保护区有一定联系。

The results from surveying the floristic composition of pteridoflora and geographical components in Yushe National Forest Park show that there are 107 species belonging to 56 genera of 30 families（including subspecies）,Athyrium subrigenscens is newly recorded in China mainland,the dominant families are Dryopteridaceae,Polypodiaceae,Athyriaceae and Thypteridaceae,and the dominant genera are Athyrium,Dryopteris,Selaginella and Coniogramme.The geographical components of families and genera belong to pantropical composition of tropical distribution mainly.The geographical components of species belonging to East Asia composition of temperate zone distribution and Chinese special composition mainly and the species of East Asia and Chinese occupy 49.02% and 30.39% respectively.There is a closed relation in floristic composition among Leigong Mountain,Hongshui River Valley and Sanqing Mountain natural reserve and there is a certain relation in floristic composition between Cang Mountain and Wutong Mountain natural reserve.