【作者】 田晔林； 孙颖；

【Author】 Yelin Tian Ying Sun (Beinonglu Num.7, Huilongguan Town, Changping District, College of Landscape and Gardening, Beijing University of Agriculture, Beijing , 102206, China)

【机构】 北京农学院园林学院；

【摘要】 对采自北京地区的近400余号绢藓属(Entodon)植物标本进行了分类研究。通过查阅资料、在解剖镜和显微镜下观察,共鉴定出该属植物19种、2变种。其中,绿叶绢藓(Entodon obtusetus)、尖叶绢藓(E.acutilolius)、钝叶绢藓(E.obtusetus)和亚美绢藓异色变种(E.sullivantii var.versicolor)是新记录种。根据标本编制了北京地区绢藓属植物分种检索表,概述每一种的识别特征、生境和地理分布,并拍照。北京地区绢藓属植物区系地理成分中,以特有成分为主。与其他省相比,北京地区绢藓属植物物种多样性仅次于云南和湖北。更多还原

【Abstract】 Based on the literatures and about 400 specimens collected from Beijing, 19 species and 2 varieties were identified. Among them, Entodon obtusetus, E. acutilolius, E. obtusetus, E. sullivantii var. versicolor were newly recorded to Beijing. A key to the species of Beijing was given. And the diagnostic features, general data on habitats, geographic distributions and illustrations about these taxon were discussed. Finally, the floristic elements of Entodon C. Muell. in Beijing were briefly discussed. Among them, Endemic to China (6 species) were dominant. Compared with other districts, the diversity of species of Beijing was just next to that of Yunnan Province and Hubei Province.更多还原