赣东北珍稀濒危树种植物区系分析

The flora analysis of rare and endangered tree species in northeastern Jiangxi Province

通过对赣东北珍稀濒危树种的调查研究,结果表明赣东北的珍稀濒危树种种类丰富,有53科97属159种;属的地理成分复杂,东亚-北美间断分布和中国特有种分布明显,均为17属,占总属数的17.5%;同时赣东北珍稀濒危树种中单种属、孑遗植物、中国特有属、中国特有种数量均较为丰富,反映该植物区系具有一定的古老性。

There are 159 species of rare and endangered trees by investigating and researching in northeastern Jiangxi Province.The flora is complicated in geographical elements,East Asia North American disjunction and Chinese endemic species distributiom with obvious characteristics,both are 17 genera,taking up 17.5%.There are abundant monotypic genera,relic plant,Chinese endemic genera,Chinese endemic species of rare and endangered trees in northeastern Jiangxi Province,it shows clearly the ancient nature of this flora.