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A revision of Clematis sect. Atragene (Ranunculaceae)
Yang, Wen-Jing1,2; Li, Liang-Qian1; Xie, Lei3
2009-11-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
卷号47期号:6页码:552-580
摘要Clematis sect. Atragene is revised in this paper based on the examination of a large number of herbarium specimens, extensive field observations, and morphometric analyses. Brief taxonomic history and geographical distribution of the section are given, the relationships among the species are discussed, and the evolutionary trends of some characters in the section are evaluated. The staminodes of the plants in this section may have evolved from the outer stamens with petaloid filaments and gradually disappearing anthers. Subsequently, they may have evolved in two different ways. One possibility is that the staminodes elongate and become lanceolate, as long as sepals, and their apices turn into attenuate. The other is that the staminodes are spathulate, but not elongating, as long as stamens, and their apices turn into retuse from obtuse and rounded. The evolutionary trend of sepals may be from thin to thick in texture, and the veins from non-prominent to prominent. As a result, five new series are established and nine species, two subspecies and nine varieties (including three new ranks) are recognized in this section. An identification key is provided, and each taxon is described and illustrated. Clematis sibirica and Clematis ochotensis are treated as subspecies of Clematis alpina due to their subtle differences and lack of, or few, overlapping distributions. Clematis fusijamana and Clematis fauriei are recognized as varieties of C. alpina ssp. ochotensis for the continuous variation of the velutinous strips on the sepal margins. Clematis iliensis is treated as variety of C. alpina ssp. sibirica for the continuous variation of leaf division types. Extensive variations in sepal color and basal caruncle size support degrading Clematis chiisanensis as a variety of Clematis koreana. The North American ser. Occientales may be primitive, whereas ser. Macropetalae may be the most advanced taxon in this section. Ser. Alpinae and ser. Koreanae are closely related to each other. However, the systematic position of ser. Tomentosae cannot be determined based on morphological characters alone in the present study.
关键词Clematis Sect. Atragene Ranunculaceae Taxonomic Revision
资助信息National Natural Science Foundation of China [30870146]
学科领域Plant Sciences
DOI10.1111/j.1759-6831.2009.00057.x
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000272599700005
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/11141
专题中国西南野生生物种质资源库
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, SW China Germplasm Bank Wild Species, Kunming 650204, Peoples R China
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Yang, Wen-Jing,Li, Liang-Qian,Xie, Lei. A revision of Clematis sect. Atragene (Ranunculaceae)[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(6):552-580.
APA Yang, Wen-Jing,Li, Liang-Qian,&Xie, Lei.(2009).A revision of Clematis sect. Atragene (Ranunculaceae).JOURNAL OF SYSTEMATICS AND EVOLUTION,47(6),552-580.
MLA Yang, Wen-Jing,et al."A revision of Clematis sect. Atragene (Ranunculaceae)".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.6(2009):552-580.
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