Analysis on the Flora of Seed Plant in Yulongshan National Forest Park

Flora of seed plant in Yulongshan,a national forest park in Chongqing municipality,was analyzed based on field investigation.The floristic characteristics of the studied area are as follows: 1) The species richness of seed plant is high.There are 1074 species of seed plants belong to 150 families and 600 genera,among which gymnosperms contain 18 species,8 families and 15 genera,and angiosperms contain 1056 species,585 genera and 142 families.2) The style of distributing is complex.The species composition represents most of families and almost all genera distributed in China.3) The seed plant origin is antiquity.4) There exists obvious dominant species.5) The plant life form is abundance.Though most of the plant species are herbaceous plant,the woody plant may play much more role for the forest to carry out its function.6) The present flora has a complex geographical component,possess obvious temperate floristic characteristics but with a tropical floristic origin.7) Compared with the neighboring scenic spots,there are more families and genera and less species in the park.The results may be some help for the build of the forest park.