内蒙古属于国家级珍稀濒危保护植物的地理分布及其区系特征

Geographic Distribution of the Rare,Endangered and Protected Plants in Inner Mongolia and Their Characteristics of Flora

本文分析了内蒙古属于国家级珍稀濒危保护植物４７种及所属４３属的地理分布及其区系特征。结果表明：本区存在着较多的我国特有植物及单种属和少种属植物，说明内蒙古的珍稀濒危植物区系的古老性和独特性。根据对４３属中４７种植物的分布区类型的分析，其地理成分明显的以温带区系成分为主。

In this paper,it mainly analyses the distribution types of 43 genera of rare,endan-gered and protected plants and their geographic distribution of 47 species as well as thefloristic characteristics in Inner Mongolia. The results are summarized as follows:The fact that there are the major chinese endemic plants and monotypic gencra as well asoligotypic genera in this region shows ancientry and unique;The distribution types of 43 genera are obviously of temperate nature,the geographicdistributions of 47 species are manly temperate florictic elements.