萨吾尔—塔尔巴哈台山地(中国)植物区系科属分析

Analysisof Fam iliesand Genera in Saur-TarbagataiMountains(China)

本研究对萨吾尔—塔尔巴哈台山地（中国）植物区系从科、属的角度对区系组成、区系性质进行了分析。结果表明：本区共有高等植物８７科、４７７属、１５９２种；植物种类在科属中的分布呈现出一方面集中分布于少数科属中，另一方面在大多数科属中又趋于分散的特点；本区中包含种数较多的１２个大科及２６个大属以温带性质为主；属的地理成分分析表明植物区系的来源是多源的，植物区系具有典型的温带性质。

This paper analyses the floristic com position and floristic characteristics of Saur-tarbagataim ountainsatthelevelofthefam iliesand genera. Them ain conclusionsareas follows: theflora contains1592 speciesofhigh plantsin 477 generaof87 fam ilies; thespecies distributein afew fam iliesand generaon theonehand,and dispersein alargenum beroffam i- lies and genera on the other hand; the 12 large fam iliesand the 26 large genera m ainly have tem perate characteristics; analysisofgeographicalelem entsofgenera showsthattheoriginsof the flora are diverseand theflora istypicaltem perateflora.