Floristic Characteristics of the Rare and Endangered Plants in Jiangxi Province

According to Red Book of Plants in China(Vol.1) and National Important Wild Conservative Plants List(List 1),which were issued by the State Council in August of 1999,there are 45 families,72 genera,and 87 species of rare and endangered plants in Jiangxi Province.The growth-type and floristic characteristics of seed plants were investigated and analyzed in this paper.The results are as follows: From the analysis of the generic distribution of 65 genera of the rare and endangered seed plants of Jiangxi,18 genera are of tropical distribution,which make up 27.7% of the total generic number of endangered plants;28 genera are of temperate distribution,which account for 43% of the total.The floristic elements have obvious temperate to subtropical characteristics.Eighteen genera are of endemic distribution to China,which make up 27.7% of the total generic number of the endangered plansts.The floristic elements are characterized by ancient origin and obvious endemism.Cluster analysis indicates that the flora here shows a close relation to those of Zhejiang,Anhui,Hunan and Sichuan.