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都匀楼梯草, 贵州荨麻科一新种
王文采,韦毅刚
1. 中国科学院 植物研究所 系统与进化植物学国家重点实验室, 北京 100093;2. 广西壮族自治区 中国科学院 广西植物研究所, 广西 桂林 541006
摘要:
描述了在中国贵州发现的楼梯草属一新种:都匀楼梯草(Elatostema duyunense W. T. Wang & Y. G. Wei),本种在亲缘关系上与上林楼梯草(E.shanglinense W. T. Wang)甚为相近,但根状茎细长,明显,茎较高,叶上面近牙齿顶端处被极短糙伏毛,托叶较大,条形或宽条形,有1条褐色脉,雄花序有短梗,花序托近圆形,明显,苞片6,其中2枚较大,卵状三角形,4枚较小,船状条形,小苞片无毛而与后者不同。
关键词:  都匀楼梯草, 荨麻科, 新种, 贵州, 中国
DOI:
分类号:Q949.737.5
文章编号:1000-3142(2016)增刊1-0156-03
Fund project:
Elatostema duyunense, a new species of Urticaceae from Guizhou, China
WANG Wen-Cai1, WEI Yi-Gang2
1. State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;2. Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China
Abstract:
A new species of Elatostema(Urticaceae)are described from Guizhou, China.
Key words:  Elatostema duyunense W. T. Wang & Y. G. Wei, Urticaceae, new species, Guizhou, China
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