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