Abstract: Xilongshan is a large montain in N 22°26' - 22°46', E 102°32' - 103°04'. It covers an area about 1 000 km2 and is shared by China, Vietnam and Laos. The Chinese part with an area of 178 km2 and a related altitude about 2 500 m is located at WS Jinping of Yunnan province. In the precent paper, the vegetation of the Chinese part were reported for the first time and especially discussed the community com-position of Monlane mossy eveiygreen broad-leaf forest and Summit mossy dwarf forest in details. In the two types of vegetation, the dominajite species were represented by Rhodokia spp. (Mamamelidaceae) and Rhdodendron spp. (Ericaceae) respectively. The companions imply that the two kinds of Mossy forests are related in some way to those existed in NW Yunnan.

Key words: The Xilongshan mountain

摘要： 报道了西隆山中国部分的植被，详细地记述了山地苔藓常绿阔叶林和山顶苔藓矮林的群落组成。该两种植被类型的优势类群分别以金缕梅科红花荷属和石楠科杜鹃属的多种植物为特征。比较研究显示该地区的两种苔藓林与云南西北部的有一定的相关性。

关键词: 西隆山, 植被, 山地苔藓常绿阔叶林, 山顶苔藓矮林, 云南, 中国