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题名: Pollen morphology of Pedicularis sect. Cyathophora, a group endemic to the eastern Himalaya-Hengduan Mountains region
作者: Yu, Wen-Bin1, 2; null(王红)1
刊名: JOURNAL OF INTEGRATIVE PLANT BIOLOGY
关键词: eastern Himalaya ; Hengduan Mountains ; Pedicualris ; pollen morphology ; sect. Cyathophora
英文摘要: Pedicularis sect. Cyathophora is a distinctive group endemic to the eastern Himalaya-Hengduan Mountains region. It was regarded as a 'grex' or section and included all four general corolla types of Pedicularis. A unique feature of it is that the leaf and bract bases are fused together to form a cup-like structure around the stem at each node. Pollen morphology of seven species in sect. Cyathophora was investigated by scanning electron microscopy (SEM) and light microscopy (LM). Two different pollen apertures could be distinguished (i.e. trisyncolpate and bisyncolpate) using LM, while examination with SEM made it possible to recognize three types of exine ornamentation (i.e. microscabrate, microfoveolate and microreticulate). The microfoveolate exine ornamentation was found in trisyncolpate pollen grains for the first time. Possible relationships between pollen data and the corolla types were discussed. Comparisons of floral and phyllotaxy characters of the genus Pedicularis, together with the pollen characters of sect. Cyathophora, could help us to better understand the evolutionary trends in Pedicularis.
出版日期: 2008-02-01
卷号: 50, 期号:2, 页码:244-252
DOI标识: 10.1111/j.1744-7909.2007.00364.x
语种: 英语
ISSN号: 1672-9072
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2729
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, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Yu, WB; Wang, H.Pollen morphology of Pedicularis sect. Cyathophora, a group endemic to the eastern Himalaya-Hengduan Mountains region,JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2008,50(2):244-252
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