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题名: Morphometric analysis of the Taxus wallichiana complex (Taxaceae) based on herbarium material
作者: Moeller, Michael; null(高连明); Mill, Robert R.; null(李德铢); Hollingsworth, Michelle L.; Gibby, Mary
刊名: BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
关键词: China ; geographical distribution ; PCA ; taxonomy ; Taxus fuana ; Taxus sumatrana ; variety delimitation
英文摘要: We used morphological and geographical data of 128 herbarium specimens of the Taxus wallichiana complex in eastern Asia to investigate their utilization in discriminating and identifying taxa included in the complex. One bud scale and 26 leaf characters were used to separate T. fuana, T. wallichiana var. wallichiana, T. wallichiana var. mairei, T. wallichiana var. chinensis and T. sumatrana by K-means clustering and dendrograms using Ward's distance. Out of the 27 characters examined 21 were found to be well correlated with geographical patterns. T. fuana was morphologically the most distant taxon, while T. sumatrana clustered among the T. wallichiana varieties. After correcting misidentifications of the specimens in T. wallichiana, its varieties occupied discrete geographical ranges, except for some limited sympatry of varieties mairei and chinensis east of the Tanaka Kaiyong line and the Sichuan Basin, China. Our analysis demonstrates the importance of consistency in character selection and definition in the identification of morphologically difficult taxa and the power of combining morphometric and geographical data in clarifying their spatial distribution. (C) 2007 The Linnean Society of London, Botanical Journal of the Linnean Society, 2007, 155, 307-335.
出版日期: 2007-11-01
卷号: 155, 期号:3, 页码:307-335
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0024-4074
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2777
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.Royal Bot Gardens, Edinburgh EH3 5LR, Midlothian, Scotland
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Moller, M; Gao, LM; Mill, RR; Li, DZ; Hollingsworth, ML; Gibby, M.Morphometric analysis of the Taxus wallichiana complex (Taxaceae) based on herbarium material,BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2007,155(3):307-335
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