2010•Guizhou nongye kexueRequires access
Study on Floristic Composition of Pteridoflora in Yushe National Forest Park
Qiang Luo, Mei Du
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Abstract
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.