披碱草属(Elymus L.)两个物种之订正

doi:10.7523/j.issn.2095-6134.2002.6.007

中国科学院大学学报 ›› 2002, Vol. 40 ›› Issue (6): 539-545.DOI: 10.7523/j.issn.2095-6134.2002.6.007

披碱草属(Elymus L.)两个物种之订正

卢宝荣

收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2002-11-10
通讯作者: 卢宝荣

Revision of two Elymus species (Poaceae)

LU Bao-Rong

Received:1900-01-01 Revised:1900-01-01 Published:2002-11-10
Contact: LU Bao-Rong

摘要/Abstract

摘要：

披碱草属Elymus L．是小麦族Triticeae Dumort．中最大的属，全世界共有150多个种，广泛分布于

温带地区。我国约有80余种(包括鹅观草属Roegneria C．Koch)，是披碱草属的重要分布区和多样性分

化中心。由于披碱草属植物种类繁多、分布广泛、生境多样以及形态变异较为复杂，导致该属在分类上

存在许多问题。同时，由于地域的局限和地区间交流的缺乏，致使同一种披碱草属植物被不同的学者多

次发表及同物异名现象的出现。本文对E．antiquus和E．burchan-buddae这两个曾多次被订名的披碱草

属物种进行了分类订正。

关键词: 小麦族, 披碱草, 分类订正, 形态特征

Abstract:

Elymus L. is the largest genus in the tribe Triticeae Dumort., encompassing approxi-

mately 150 species over the world. Species of the genus are widely distributed in the temperate re-

gions, particularly in the northern hemisphere. China is one of the most important world’s distribu-

tion and diversification centers of the Elymus species, with more than 80 taxa (including those clas-

sifted in the genus Roegneria C. Koch) widely occurring in many provinces, particularly in the

western and northern regions of the country. Owing to its abundance in species, extensive distribu-

tion, variable habitats, and complicated morphological variation, taxonomic classification of this ge-

nus has been always problematic. In addition, many traditional taxonomists from different parts of

the world mainly had their research interests in their own regions due to historical reasons, which

largely hampered communication between the regions. As a consequence, some Elymus species were-

described as new species several times by different taxonomists. The present paper reports taxonomic

revision of two common Elymus species, i.e.E. antiquus and E. burchan-buddae. Elymus an-

tiquus is a perennial and tetraploid (2n= 4x= 28) species containing the StStYY genomes. It is

commonly found in western and northwestern China and is also found in mountain area of Nepal.

This species was first described by a Russian agrostologist, S. A. Nevski, based on specimens col-

lected from Tibet, China. Our study indicated that two grass species described as Agropyron microl-

epis Melderis from Nepal and Roegneria parvigluma Keng from Kangding of Sichuan are the syn-

onyms of E. antiquus. Elymus burchan-buddae is also a perennial and tetraploid (2n = 4x = 28)

species containing the StStYY genomes. It is widely distributed in western and northwestern China

and might have its distribution in Nepal and northern India. This species was first described by

Nevski based on specimens collected from Burchan Budai Shan (Kunlun Mountain) in Qinghai. Our

investigation concluded that two species described as Agropyron nutans Keng from Xiahe of Gansu

and Agropyron breviglumis Keng from Shao Wu Shi of Sichuan are the synonyms of E. burchan-

buddae.

Key words: Triticeae, Elymus, Roegneria, Agropyron, Taxonomic revision, Morphology

卢宝荣. 披碱草属(Elymus L.)两个物种之订正[J]. 中国科学院大学学报, 2002, 40(6): 539-545.

LU Bao-Rong. Revision of two Elymus species (Poaceae)[J]. , 2002, 40(6): 539-545.

[1]	郑译儒, 赵俊超, 龚束芳, 王金刚. NaHCO₃和Na₂CO₃胁迫对碱茅和披碱草种子萌发、幼苗生长和生理指标的影响[J]. 中国科学院大学学报, 2021, 38(2): 228-239.
[2]	宋洋, 张华, 侯西勇. 20世纪40年代初以来渤海形态变化特征[J]. 中国科学院大学学报, 2018, 35(6): 761-770.
[3]	. 纪念量子论创立一百周年学术报告会在京隆重举行[J]. 中国科学院大学学报, 2000, 17(2): 12-12.

披碱草属(Elymus L.)两个物种之订正

Revision of two Elymus species (Poaceae)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 3

编辑推荐

Metrics

本文评价

访问统计

联系我们