中文摘要：

通过光学显微镜和扫描电子显微镜观察了中国产真藓属（Bryum Hedw.）12种植物蒴齿的形态特征。结果显示,根据真藓属齿片的曲向可以分为近直立、齿片伸入齿条间和齿片向外反曲等3种类型。根据齿毛的有无,也可分为3个类群。同时利用STATISTICA6.0统计软件对12种真藓属植物进行聚类分析及主成分分析。研究结果显示,齿片的曲向类型、齿毛是否发育等形态特征可作为真藓属植物种间的分类依据,为藓类植物蒴齿形态特征与分类和系统进化关系的研究提供了新的资料。

英文摘要：

Peristome morphology of 12 species of the genus Bryum Hedw. were observed by LM and SEM. The results show that based on the tropism of dentium the 12 species could be divided into three types： approximately erection; dentium insert between two proeessus; excurvature of dentium. According to cilia of the genus the 12 species may also be divided into three groups. Meanwhile, the clustering analysis and principal components analysis of these species have been made by the software STATISTICA 6. 0. The result showed that the dentium charactenstics, tike tropism of dentium and the development state of cilia, can be the standards to classify the plants in Bryum among species. The paper gives new information on the system evolution study on the characteristics of moss peristome.