瓦屋山国家森林公园蕨类植物区系分析

在野外调查和分类的基础上，对瓦屋山国家森林公园蕨类植物进行了初步的区系分析。现已知该地区共有蕨类植物36科，71属，156种，以热带成分为主，温带成分次之。蕨类植物的区系分析表明：(1)物种多样性丰富。科、属、种分别占四川的69．2％、55．5％和21．4％；(2)物种具有古老性和特有性。残遗植物以及中国，四川特有种多；(3)物种具有过渡性。

Floristic Analysis of Pteridophyte in Wawushan National Forest Park

Based on field investigation and statistical analyses,the flora of pteridophyte in Wawushan National Forest Park is studied in present paper.There are 156 species pteridophyte belonging to 71 genera and 36 families respectively.Most of them are tropical elements,the temperate elements take the second place.The result shows that:(1) The biodiversity is very rich,the amount of the families,the genera and the species account for 69.2%,55.5% and 21.4% in Sichuan respectively.(2) The species are primitive and many of them endemic to China or Sichuan.(3) The species in this region also embody the nature of transition.