泰顺县维管束植物区系特点

泰顺县共有维管束植物２１５科１０６３属２７４８种，分别占全省维管束植物科、属、种总数的９３．１％、７７．８％和７０．８％。其中蕨类植物４５科９４属３９１种，裸子植物９科２８属５０种，被子植物１６１科９４１属２４０７种，栽培引种１７科１５０属３９４种。本文根据地史资料和自然条件，通过对维管束植物种类的组成和地理成分的分析，并与周邻植物区系种类的比较，认为泰顺县植物区系种类丰富，特有珍稀植物多，起源古

Characteristics of Vascular Plant Flora of Taishun County,

Taishun Countyis situated the southwest of Zhejiang Prov ince. There are 215 families,1063 genera and2748 species(including subspecies,varieties,culti- varieties and forms)in the flora of Taishun C0unty,Amongwhich,pter idophytes are 45 families , 94 genera and 291 species,gymnos-perins 9 families,28 genera and 50 species, angiosperms 161 families, 941genera and 2 407 species,and cultivated plants 17 families, 150 genera and394 species,They amount to 93.1%of the total families of vascular plantsof Zhejiang flora, 77.8%of the total genera and 70.8 the total species,In this paper, baSed upon material of historical geology and natural condi-tions,analysising composition of vascular plant f lora and the areal-types ofgenera of seed plants and compar ing with the genera and species of ne igh-bour ing f lora,author considered that the flora of Taishun Co unty has richspecies, and many endemic and rare plants,that the origin of the flora isfrom far ancientry,that the flor istic elements are complex and varied, andthat the re lations with f lora South China,Southwest China, Centre Chin,Taiwen of China and Japan is more close,Taishun County is over lappingregion of South China flora and East China flora.