Analysis of the gymnosperm flora of Sanqingshan Mountain in Jiangxi Province

The investigation of gymnosperm flora of Sanqingshan Mountain in Jiangxi Province showed that there are 8 family,24 genera and 31 species,which reached 66.67%,58.54% and 15.74% of the total gymnosperm-family plants in Jiangxi Province respectively,and 66.67%,48.98% and 10.58% of the total gymnosperm-family plants in China respectively.The wild plants are 6 families,14 genera and 17 species among them.The areal type and gymnosperm flora are analyzed.The areal type of family is Pantropic and North temperate primarily;The areal type of genera is endemic to China and North temperate primarily,and East Asia and East Asia to North America have been found also;The areal type of species is endemic to China and East Asia primarily,and Tropical Asia has been found also.According to ecotype,70.97% of the total genera is temperate conifer,22.58% of the total genera is warm conifer.This paper compared the gymnosperm flora of the Huangshan Mountain,Wuyishan Mountain,Tianmushan Mountain,Jinggangshan Mountain,Lushan Mountain and Sanqingshan Mountain,and calculated the comparability coefficients of the plants in five Mountain and Sanqingshan Mountains,and the ratio of genus and species.The result is as follows: the areal type of genera and family is North temperate primarily,the specific areal type is endemic to China primarily,the comparability coefficients of the flora and the ratio of genus and species all are high in the five mountains and Sanqingshan Mountain,but components of genera and species also differ.The rare and endangered plants in six mountains are sorted out statistically.