贵州种子植物一新记录种——帽蕊草  

A newly recorded seed plant species in Guizhou: Mitrastemon yamamotoi Makino

作　　者：汤升虎[1] 李飒[1] 杨加文 袁茂琴[1] 周庆[1] 钱长江 魏鲁明[3] 

机构地区：[1]贵州省植物园,贵州贵阳550000 [2]贵州师范学院化学与生命科学学院,贵州贵阳550000 [3]贵州茂兰国家级自然保护区管理局,贵州荔波558400

出　　处：《贵州科学》2017年第5期6-8,共3页Guizhou Science

基　　金：贵州科学院青年基金项目(黔科院J合字[2015]03号);贵州科学院青年基金项目(黔科院J合字[2016]3号);贵州省科技基础平台项目(黔科合条X[2014]4002号);贵州省科研机构服务企业行动计划项目(黔科合服企[2015]4013号);贵州茂兰自然保护区珍稀特有植物本底资源调查研究项目

摘　　要：贵州茂兰国家级自然保护区位于贵州南部,属于裸露型喀斯特,植物资源丰富。近年来,在茂兰自然保护区的野外考察中,发现了一种罕见的植物——帽蕊草(Mitrastemon yamamotoi Makino),为贵州种子植物新记录种。该种原分布于柬埔寨、日本和印度尼西亚及我国的云南、广西、广东、福建和台湾。帽蕊草具有以下识别特征:肉质草本,寄生在木本植物的根上,株高3 cm^8 cm,叶退化为鳞片,雄蕊合生成筒状,套住雌蕊,易于与其它植物种类相区别。该文中还提供了该种的中文形态描述及彩色图片,并对其分布状况进行了报道。Maolan National Nature Reserve is located in southern Guizhou, and is remarkable for its rich plant re- sources on bare karst. During resent field trips to Maolan National Nature Reserve ,we discovered a newly recorded species in Guizhou-Mitrastemon yamamotoi Makino. The species was previously considered to distribute in Cambodi- a, Japan, Indonesia and in Yunnan, Guangxi, Guangdong, Fujian, Taiwan of China. It has the following characteris- tics ： herb, succulent, parasitic on roots of woody plants, 3-8 cm tall, leaves degenerating to scales, stamens forming a closed tube over pistil. In this paper, we also provided its description in Chinese, its color photo and its distribution status.

关 键 词：帽蕊草 新记录 茂兰自然保护区 贵州 

分 类 号：Q949[生物学—植物学]