天目山清凉峰自然保护区植物区系地理分析

Florog-eographical Analysis of Mount Qingliangfen Natural Reserve in the Tianmu Mountains.

天目山清凉峰共有维管束植物181科,601属,1228种(包括种下等级)。蕨类植物属的地理成分以热带—亚热带分布的属占显著优势(占蕨类植物属总数的71.10％),但本区蕨类区系不属于熟带蕨类区系,而应划归耳蕨—鳞毛蕨类植物区系。种子植物属以温带性成分占优势(占种子植物属总数的63.03％),也兼有热带性成分(33.54％),呈现亚热带特性。通过维管束植物区系地理分析,揭示了本区植物区系作为华夏植物区系的一部分,具有地理成分复杂的特征。

There are 1 228 species of tracheophyta belonging to 601 genera and 181 families in Mount Qingliangfen of the Tianmu Mountains. The genera of tropical to subtropical distributional patterns occupy a considerable position (71.10%) among the pteridophytes flora, and the temperate ones are in low proportion (28.90%). The fern flora of this region which characterized by Dryopteris and Polystichum,etc. are considered as Polysticho-Dryopteris flora not as tropical ones. The geographical distribution of seed plants are divided into 14 types, of which,taking a predominated position, 63.03% are the genera of temperate distributional patterns, the others are tropical ones.