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Plant Diversity ›› 2012, Vol. 34 ›› Issue (4): 354-.DOI: 10.3724/SP.J.1143.2012.11186

• 研究论文 • 上一篇    下一篇

中国南蛇藤属 (卫矛科) 一新记录种及其意义

 沐先运1, 谭运洪2, 张志翔1   

  1. 1 北京林业大学生物科学与技术学院，北京100083；2 中国科学院西双版纳热带植物园，云南 勐腊666303
  • 收稿日期:2011-12-15 出版日期:2012-08-25 发布日期:2012-05-10
  • 基金资助:

    国家自然科学基金 (30870149)

A New Record of Celastrus (Celastraceae) in China and Its Implication for the Genus

 MU  Xian-Yun-1, TAN  Yun-Hong-2, ZHANG  Zhi-Xiang-1   

  1. 1 College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China;
    2 Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, China
  • Received:2011-12-15 Online:2012-08-25 Published:2012-05-10

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摘要：

A new record of Celastrus species in China, C.monospermoides is identified when performing a field investigation in Xishuangbanna, Yunnan Province in 2011 for the taxonomic revision of the genus. Though morphologically similar to C.monospermus, it can be distinguished by narrow elliptic leaves with acuminate apex (vs. elliptic, broadly elliptic or obovateelliptic leaves), fruits without conspicuous gynophores, and relatively smaller seeds (shorter than 12mm vs. longer than 15mm in length). However, it is not clustered in the same clade with C.monospermus, but closely neighbor to C.hindsii in the molecular phylogenetic analysis. For it was recorded endemic to tropical area in Asia such as Indonesia, Malaya, and Philippines, there must be more populations distributed between these area and Yunnan Province in China. This distribute pattern provide new clues in understanding the origin and divergence of the genus Celastrus.

关键词: Celastrus, Celastrus monospermoides, Celastraceae, New record, China

Abstract:

A new record of Celastrus species in China, C.monospermoides is identified when performing a field investigation in Xishuangbanna, Yunnan Province in 2011 for the taxonomic revision of the genus. Though morphologically similar to C.monospermus, it can be distinguished by narrow elliptic leaves with acuminate apex (vs. elliptic, broadly elliptic or obovateelliptic leaves), fruits without conspicuous gynophores, and relatively smaller seeds (shorter than 12mm vs. longer than 15mm in length). However, it is not clustered in the same clade with C.monospermus, but closely neighbor to C.hindsii in the molecular phylogenetic analysis. For it was recorded endemic to tropical area in Asia such as Indonesia, Malaya, and Philippines, there must be more populations distributed between these area and Yunnan Province in China. This distribute pattern provide new clues in understanding the origin and divergence of the genus Celastrus.

Key words: Celastrus, Celastrus monospermoides, Celastraceae, New record, China

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