海南植物区系的多样性

记载海南维管束植物的多样性，表明蕨类植物区系已有古生代和中生代的孑遗，又有白垩纪以来的现代蕨类，它们都存在着许多特有种；裸子植物则以泛热带成分及华夏成分为主；有花植物包括全球植物区系8个植物区的成分，而以热带成分全球性分布成分最多。最后，文章分析了海南植物区系多样性的地史背景及自然条件的因素。

The Diversity of the Hainan Flora

This paper is concerned with the diversity of the vascular plants in Hainan.Those of the ferns were composed both of the diversity of the relic ferns from Devonian to Jurassic and those of the ferns after cretaceous.The diversity of the genera and species as well as the endemics were given out.The diversity of the gymnosperms is mostly belonging to the tropic and Cathysian elements.The Angiospermous flora was included 8 plant regions of the world plant kingdom,amount them the tropic and the world wide distributed elements are the dominent ones.Finally,the backgrounds of the geohistory and the nature condilions of the plant diversity were analysed,and a conclusion was attached.