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中文摘要：
基于7000m2的14块样地内出现的315种物种,从科、属、种水平对高黎贡山南段中山湿性常绿阔叶林种子植物的区系特征和性质进行了分析.结果表明：（1）群落类型主要为硬斗石栎林和多变石栎林,共有种子植物77科147属286种;（2）在科、属、种级水平上,热带分布与温带分布的比例分别为1.63∶1,1∶1,1∶3,表明群落在科级水平上具有明显的热带性质,属级水平上两种成分相当,而在种级水平上温带成分占据优势,群落表现出由亚热带性向温带性过渡的区系特征;（3）群落中出现2个中国特有属、156种中国特有种、5种当地特有种.经与其他3个区域中国特有种的比较分析,表明该群落有较多的当地特有种和云南特有种,反映了纵向岭谷区的“通道—阻隔”效应在高黎贡山南段中山湿性常绿阔叶林植物区系演化与起源的重要作用.
英文摘要：
Based on 315 kinds of species within 14 sample plots of 7 000 m2, this paper studied the flora on mid-mountain humid evergreen broadleaf forest （MHEBF） of the southern part of Mt. Gaoli- gongshan and analyzed characteristics and properties from family, genus and species level. The result showed that ： （ 1 ） The seed plants of MHEBF of the southern part of Mr. Gaoligongshan belonged to 77 families, 147 genera and 286 species, the major two community types were Lithocarpus hancei forest and Lithocarpus variolosus forest. （2） The ratio of tropical distribution type and temperate distribution type in family, genus and species level were 1.63： 1, 1 ： 1 and 1 ： 3 respectively, which showed that the families were representative tropical families, the genera were moderate and the species were temperate species, that was the floristic characteristics of this area were transition from sub-tropical type to ternperate type. （3） There were 2 Chinese endemic genera, 156 Chinese endemic species and 5 local en- demic species. From the comparative analysis on endemic species with other 3 near areas, the more lo- cal endemic species and more endemic species to Yunnan in MHEBF of the southern part of Mt. Gaoli- gongshan indicated the corridor-barrier function of longitudinal range-gorge region, which played an important role in flora origin and evolution of the MEHBF of the southern part of Mt. Gaoligongshan.
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