摘要
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.
关键词
内蒙古
珍稀濒危植物
地理分布
区系
Inner Mongolia
Rare and endangered plants
Geographic distribution
Floristics
