老君山自然保护区种子植物区系地理的初步研究

Preliminary Study on the Floristic Spermatophyte Geography of Laojunshan in Henan

河南老君山是伏牛山主峰之一，计有野生种子植物１３１科、６０１属、１５３４种。通过对上述分类单位区系地理成分的分析，并结合地史和气候的变迁，该区种子植物区系特征为：（１）温带性质、热带亲缘；（２）起源古老，具衍生性质；（３）属于中国－日本森林亚区的华北植物地区；（４）地理成分多样，区系联系广泛；（５）种系密度大，特有种较多；（６）南北植物过渡，东西植物交汇。

Laojunshan one of the highest peak in Funiu Mountain range in west Henan hasa total of 1534 species,representing 601 genera and 131 families. After a thorough andcareful floristic analyses of the families,genera and species in the present flora and compar-ison of the related regions,we came to the following conclusions:1,The flora was originat-ed from the ancient tropical elements and had temperate characteristics at present;2,Theorigin of the mountain flora was ancient and the flora was remarkably derivative to a cer-tain extent;3,This flora belonged to the North China flora region of the Sino-Japan forestsubkingdom;4,The geographical elements were very complex and varied,and the flora wasrelated extensively to most parts of the world;5,Laojunshan was rather rich in spermato-phyte and had more species endemic to Henan;6.The flora had a transitional characterfrom south warm temperate to north subtropics and there were lots of mixture ingredientsfrom west to east.