Floristic Diversity and Fundamental Features of Wild Seed Plants in Jiangxi Province

Jiangxi province is located east of the mid-subtropical zone of China,and has a long geological history.It has superior natural environment conditions,and possesses many plant species.According to preliminary data,there are 4057 species of wild seed plants in Jiangxi province (including varieties) belonging to 193 families and 1082 genera,of which gymnosperms account for 7 families,18 genera,and 29 species and angiosperms account for 186 families,1064 genera,and 4028 species.Floristic analysis showed: (1) a rich floral composition,with the dominant families and genera highly prominent; (2) complex geographical components indicated by the flora being extensively connected with most parts of the world,with a dominant tropical element for the wild seed plants overall as well as a large temperate element; (3) flora of ancient origin,with relic plants still found to exist in the area; and (4) the existence of many rare and endemic plants.