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植物研究 ›› 2016, Vol. 36 ›› Issue (5): 641-646.doi: 10.7525/j.issn.1673-5102.2016.05.001

• 研究报告 •    下一篇

中国楼梯草属研究随记

王文采   

  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
  • 收稿日期:2015-03-12 出版日期:2016-09-15 发布日期:2016-09-27
  • 作者简介:王文采(1926-),男,研究员,中国科学院院士,从事有花植物分类学研究。

Notes on the genus Elatostema(Urticaceae) of China

WANG Wen-Tsai   

  1. State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Scienses, Beijing 100093
  • Received:2015-03-12 Online:2016-09-15 Published:2016-09-27

摘要: (1)描述了自广西发现的荨麻科楼梯草属二新种,毛托叶楼梯草和弄岗楼梯草,并分别给出二种与近缘种的区别特征;(2)首次记录少齿楼梯草在中国的分布;(3)首次给出短梗楼梯草和少齿楼梯草的雌头状花序、雌花和瘦果的形态描述;(4)对楼梯草属所特有的具肋瘦果的出现时间问题进行了简略讨论。

关键词: 荨麻科, 楼梯草属, 新种, 变种, 新记录, 补充描述, 具肋瘦果

Abstract: (1)Two species of the genus Elatostema(Urticaceae), E.villosistipulum and E.longgangense, are described as new from Guangxi Autonomous Rejion, and the diagnostic differences between them and their allies are given respectively; (2)E.lineolatum var. integrifolium is newly recorded to the flora of China; (3)The descriptions of pistillate capitula, pistillate flower and achene of E.brevipedunculatum and E.lineolatum var. integrifolium are given for the first time; (4)The time of occurrence of the ribbed achenes peculiar to the genus Elatostema is briefly discussed.

Key words: Urticaceae, Elatostema, new species, variety, new record, supplementary description, ribbed achene

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