皖浙清凉峯植物区系基本特征的研究

皖浙边界的清凉峰共有维管植物181科,601属、1,228种。植物区系成份明显呈现由亚热带向暖温带过渡,地理成份也较为复杂,且保存着较为丰富的孑遗种。根据植物区系成份的剖析,作者认为本区仍应划归中亚热带,且可能是第三纪古热带植物的“避难所”之一。

STUDY ON THE BASIC FLORISTIC CHARACTERISTICS OF THE MT. QINGLIANGFENG BORDERING BETWEEN ANHUI AND ZHEJIANG

The Mt. Qingliangfeng is an important part of the Tianmu mountains. It has a series of the floristic characteristics: 1) The floristic elements are comparatively rich. According to preliminary statistics in this region, there are about 1228 species (incl. ssp. var. and f.) of vascular plants, belonging to 601 genera of 181 families. Of these, there are about 578 species of woody plants, belonging to 242 genera of 91 families. 2) The flora of this region is characterized by ancient origin, with rich relic elements. In the 547 genera of seed plants, there are 31 world monotypic, 76 world olipotypic genera and 17 endemic genera of China. Most of them are phylogenetically ancient or primitive. 3) The flora shows obvious transition from the subtropical zone to the warm temperate zone. 4) Endemic elements are rare. 5) It is noted that the floristic geographical elements are complex and in connection to various degrees with other part of the floristic regions of the world.By the analysis of the basic floristic elements, it is proposed that this region belong to the northern part of mid-subtropical zone and this region may be considered one of few refuges of the old-tropical flora of Tertiary.