贵州喀斯特地区受危种子植物的种类和分布

通过对有关资料的分析统计，得知贵州喀斯特地区受危种子植物已达３４２种，约占全省种子植物种数的６．８％，占全省受危种子植物的８５％。根据受危物种的现状特征，分析了受危种子植物的受危类型及其分布特点。

Kind and distribution threatened seed pland in karst area

According to analysis and statistics of the related data, The writer showed that threatened seed plant in Guizhou Karst area had been amounted to 342, accounting for 6 8% of those seed plant categories over the province, and about 85% of the threatened seed plant categories in the province. In the light of the present situation and the features of threatened species. the writer analyses the threatened typs and distribution characteristics of the threatened seed plant.