陕西省汉中地区中国种子植物特有属的分析

汉中地区种子植物区系自然分布有中国特有属48属，隶属于33科，包括裸子植物1属，被子植物47属，其中单种属24属，少种属18属，多种属6属，从其生活习性上看，木本习性有25属，草本习性的有23属。本文主要分析了汉中地区分布的中国种子植物特有属的地理分布及特点，分析结果表明：其特点主要为显著的温带性质，众多的特有属和丰富的珍稀濒危物种，在地理分布上与华中，西南地区联系密切。

The analysis of Chinese endemic genera of seed plants in Hanzhong area of Shaanxi Province

There are 48 genera Chinese endemic genera of seed plants in Hanzhong area.They belong to 33 families and includ one genus gymnosperm and 47 genera angiosperm.Among them,24 genera are single species genera,18 few species genera and 6 many species genera.According to the life habit,25 genera are woody plant and 23 genera are herbaceous plant.This paper analyses the floristic characters of the Chinese endemic genera distributed over Hanzhong in Shaanxi province.The results showed the flora demonstrates obviously a temperate nature with numeous ancient endemic genera and abundant rare and endangered species.It has close relation with the flora of southwest China and central China.