Abstract: In this paper a type of mossy forest that appears in the sclerophyllous evergreen broad-leaf forests is described. It was found by us in 1965 in the Sanyung mountain near Sanyingpan, the northern part of Luchuan district, Yunnan, occupying the altitude 2900-3100 m above sea level. The habitat that this vegetation occurs is a limestone mountain, where a mountainous cloudy belt is always around it, and below it in low altitude there is a canyon. Therefore, the habitat becomes so moist that has resulted in local climate and formed a modern environment for existence of this vegetation.

Key words: mossy forest, sclerophyllous, nimborum

摘要： 本文介绍一个出现于硬叶常绿阔叶林中的苔藓林。这是我们于1965年在云南禄劝县北部撒营盘附近撒永山海拔2900-3100米处发现的。植被所在地为石灰岩山地，绕山经常有一云雾带停留，山下低海拔有一峡谷。因此，生境湿润，致使形成局部气候，并成为此类植被存在的近代生境原因。通过采用法-端地植物学派的研究方法。并与附近地区的群落类型进行比较分析，我们确定此类植被为一群丛，并定名为“黄背栎、云生兔儿风群丛”。综合了调查区的10个样地记录，排列成一个群丛表．表中包罗14种特征种和田种伴生种，它们是构成本群丛的基本植物。外来种55种另列一表（或种类名单）。从形成历史原因看，本群丛是一类发源于第三纪的残遗植被，是由古地中海的亚热带植被经长期演变而来，并在新的生境下产生了新的适应。所以它应属于川西滇北一带普遍分布的硬叶常绿阔叶林的一个特殊类型．

关键词: 硬时常绿阔叶, 苔藓林, 云生兔儿风群丛