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题名: Taxonomic significance of leaf anatomy of Aniselytron (Poaceae) as an evidence to support its generic validity against Calamagrostis sl
作者: Ma, HY; null(彭华); null(李德铢)
刊名: JOURNAL OF PLANT RESEARCH
关键词: aniselytron ; calamagrostis ; deyeuxia ; leaf anatomy ; Poaceae
英文摘要: A comparative study of leaf anatomy on Aniselytron Merr. and Calamagrostis Adans. s.1. was conducted to review the systematic status of Aniselytron Merr. Calamagrostis s.1. exhibits wide variation in many features, but basic leaf structures of the genus remain constant: absence of a midrib-keel; median and large vascular bundles are central, with double sheaths, accompanied by girders both adaxially and abaxially; prickles have a bulbous base and are not sunken; the abaxial epidermal cells are short and wide and relatively thick-walled. Aniselytron differs from Calamagrostis s.1. in: midrib-keel is present, consisting of a large central bundle with small ones on either side; all vascular bundles are abaxially situated, with abaxial girders only, parenchyma takes the place of the adaxial sclerenchyma; the bases of the prickles are sunken and are not bulbous; the abaxial epidermal cells are tall and thin walled. These distinct anatomical features, in combination with the differences in spikelet structure and habitat, suggest that Aniselytron should be generically separated from and not merged with Calamagrostis s.1. Due to the adaxial parenchyma in the midrib which has never been found in Pooideae, Aniselytron might have a relationship with some other subfamily.
出版日期: 2005-12-01
卷号: 118, 期号:6, 页码:401-414
DOI标识: 10.1007/s10265-005-0236-0
语种: 英语
ISSN号: 0918-9440
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2994
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Lab Plant Biogeog & Biodivers, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

Recommended Citation:
Ma, HY; Peng, H; Li, DZ.Taxonomic significance of leaf anatomy of Aniselytron (Poaceae) as an evidence to support its generic validity against Calamagrostis sl,JOURNAL OF PLANT RESEARCH,2005,118(6):401-414
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