| 青海赖草属一新种 |
| |
| 引用本文： | 智丽,蔡联炳.青海赖草属一新种[J].植物研究,2006,26(2):129-130. |
| |
| 作者姓名： | 智丽 蔡联炳 |
| |
| 作者单位： | 1. 西南农业大学园艺园林学院,重庆,400716
2. 中国科学院西北高原生物研究所,西宁,810001 |
| |
| 摘 要： | 报道了青海赖草属植物一新种：圆稃赖草(Leymus oblongolenmatus L. Zhi et L.B. Cai)。该种的主要特征如下：多年生草本，杆直立、光滑、疏丛，高60～90 cm。叶鞘粗糙，边缘膜质，长于或短于节间，叶舌膜质；叶片边缘内卷。穗状花序直立、密集、黄绿色，长10～15 cm，宽5～15 mm，穗轴粗糙，小穗常3～4枚生于每节，含3～6小花；颖披针形，长4～7 mm，具3～5脉，边缘膜质；外稃长圆状披针形，不明显3脉，背部疏生短柔毛；花药黄色，长4～5 mm。该种与L. paboahus相似。
|
| 关 键 词： | 赖草属 圆稃赖草 新种 青海 中国 |
| 收稿时间： | 2004-11-12 |
| 修稿时间： | 2004年11月12 |
A new species of Leymus Hochst. from Qinghai, China |
| |
| ZHI Li,CAI Lian-Bing.A new species of Leymus Hochst. from Qinghai, China[J].Bulletin of Botanical Research,2006,26(2):129-130. |
| |
| Authors: | ZHI Li CAI Lian-Bing |
| |
| Institution: | 1. College of horticulture Southwest Agricultural University, Chongqing 400716;2. Northwest Plateau Institute of Biology, the Chinese Academy of Sciences, Xining 810001 |
| |
| Abstract: | A new species of Leymus in Qinghai,China is reported,and it's called L.oblongolenmatus L.Zhi et L.B.Cai.The main characters are described as follows: Perennial herbs.Stems are erect and glabrous,few and scattered,60~(90 cm).tall.tough leaf-sheath,membranaceous on margins,longer or shorter than internodes,membranaceous ligules;Leaf blades involute on margins.Spikes are erect,conferted and flavo-green,10~(15 cm).long,5~(15 mm).wide.tough rachis,each node of rachis are with 3~4 spikelets,with 3~6 florets.Glumes lanceolate,4~7 mm long and three to five-nerved,membranaceous on margins.Lemmas prolate spheroidal and lanceolate,obscurely threenerved,with sparse short-pilose on the back.Anther flavescent,4~5 mm.long.This species is similar to L.paboahus. |
| |
| Keywords: | Leymus L oblongolemmatus new species Qinghai China |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《植物研究》浏览原始摘要信息 |
|
