中文摘要：

通过对中国产丝瓜藓属Pohlia（缺齿藓科Mielichhoferiaceae）植物系统地分类学研究,对本属一具有假根生念珠状排列的芽胞的种——念珠丝瓜藓的形态解剖学特征和地理分布进行了修订,并讨论了念珠丝瓜藓的生境,以及与其相近种泛生丝瓜藓、明齿丝瓜藓和黄丝瓜藓等进行了比较分析。根据标本信息,确定念珠丝瓜藓在中国的分布由原来的5省区扩大到10省区,并绘制了该种在中国的分布图。

英文摘要：

Based on the systematically taxonomic study of the genus Pohlia Hedw.in China,this paper revises a species of the genus with toruloid gemmae growing on the rhizoids,Pohlia lutescens.Morphological characters,geographical distribution and habitat of this species were discussed.The comparison among P.lutescens and its related species,P.cruda,P.hyaloperistoma and P.nutans,were also conducted.The result of identification of specimens shows that the distribution range in China of P.lutescens is expanded from five to ten provinces.Meanwhile,the distribution map of the species in China is provided.