北京市被子植物新记录科与兰科新记录种  

New records of family-level angiosperm and Orchidaceae in Beijing

作　　者：沐先运[1] 童玲 雷丰玮 沈雪梨 马頔 MU Xianyun;TONG Ling;LEI Fengwei;SHEN Xueli;MA Di(College of Ecology and Nature Conservation,Beijing Forestry University,Beijing 100083)

机构地区：[1]北京林业大学生态与自然保护学院,北京100083

出　　处：《首都师范大学学报（自然科学版）》2022年第5期31-34,共4页Journal of Capital Normal University：Natural Science Edition

基　　金：国家林业和草原局兰科植物野生资源专项调查项目(2020070704);农业农村部北京市农业野生植物资源调查项目(13200346);北京市自然科学基金面上项目(5192012);北京市密云区园林局野生植物调查项目。

摘　　要：为进一步查明北京地区野生植物多样性,在2019—2021年以密云区为重点区域,采用样线、样方和野外踏查等方法,深入开展了植物资源调查工作,发现了北京市一个植物新记录科——马钱科(Loganiaceae)尖帽草属(Mitrasacme)尖帽草(M. indica),和兰科(Orchidaceae)无喙兰属(Holopogon)一个新记录种——叉唇无喙兰(H. smithianus).尖帽草以亚洲热带和大洋洲为分布中心,华北地区罕见;叉唇无喙兰为我国特有珍稀腐生型兰科植物,仅见于陕西省、四川省和河南省局域地区.北京市为这2个物种已知天然分布的最北界,研究结果丰富了对尖帽草属与无喙兰属自然地理分布的认识,深化了对北京市野生植物多样性的认识,也为北京市相关部门的生物多样性保护与管理工作提供了基础资料.In order to further ascertain the diversity of wild plants in Beijing,extensive field investigation was performed during 2019 to 2021 which focused in Miyun District,a family-level new record of angiosperm,Loganiaceae,and its representative,Mitrasacme indica,and a new record of Orchidaceae,Holopogon smithianus were discovered and reported here. Mitrasacme mainly distributed in South Asia and Oceania,while it is rarely distributed in North China. Holopogon smithianus is also a rarely distributed saprophytic orchids that is endemic in China,which is reported only in limited area in the provinces of Shaanxi,Sichuan and Henan. The two new records reported here represent the most north side of their distributional range,which not only enriched the understarding about their natural geographical distribution,but also deepened the understanding of the wild plant diversity in Beijing,and the result can facilitate biodiversity conservation and management of Beijing.

关 键 词：尖帽草 马钱科 叉唇无喙兰 北京 新记录 

分 类 号：Q949.718.43[生物学—植物学]