神农架珍稀濒危植物区系的研究

在神农架种子植物中，被列入国家重点保护的珍稀濒危植物３９种，属一级重点保护的１种，二级１６种，三级２２种。从种的地理分布和属的分布区类型的分析可以看出，该区系与西南联系密切，具有显著的温带性质，并含有众多的古老成分。

The Study on the Flora of Rare and Nearly Extinct Plants in Shennongjia

There are 39 rare and nearly extinct plants species which are placed as the major protecting plants among spermataphytes in Shennongjia.They belong to 36 genera,29 families.The distribution types of the genera of rare and nearly extinct plants and geographic distribution of the species in Shennongjia are analysed.The results are as follows:(1) The flora has more association with the south western China;(2) The flora has obvious temperate character;(3) There are a lot of ancient members especially in the distributional genera of E.Asian and Chinese endemic genera.