安徽天柱山种子植物区系研究

Floristic analysis on seed plants of Tianzhu Mountain in Anhui Province

安徽天柱山种子植物区系组成丰富,有种子植物130科,526属,991种,其中裸子植物6科、12属、18种,被子植物124科、514属、973种。分析表明,安徽天柱山种子植物地理成分复杂,分布区类型丰富。区内130科的地理成分可以划分为12种分布型,526属的地理成分也可划分为12种分布型。分布区类型具有热带和温带性质,并且亚热带区系性质明显。该区系与安徽天堂寨区系的关系密切,而与牯牛降、黄山、齐云山、清凉峰区系关系较远。

The seed plants of Tianzhu Mountain are very rich. There are 991 species （excluding subspecies） of wild seed plants belonging to 130 families and 526 genera. Among which, gymnosperms have 6 families, 12 genera and 18 species while angiosperms have 124 families, 514 genera and 973 species. Based on the analysis of the seed plants flora in Tianzhu Mountain, it is indicated that geographical compositions of seed plants flora are comparatively complex and the areal types are abundant. 130 families can be divided into 12 areal types, 526 genera into 12 areal types in Tianzhu Mountain. This flora has characteristics of the temperature type and the tropic type, especially, the subtrophic type is dominant. By analysis of the floristic relationship among adjacent mountainous regions, the flora belongs to west Anhui mountainous district, and has a close relationship with Tiantangzhai.