Plant Diversity ›› 2014, Vol. 36 ›› Issue (04): 419-432.DOI: 10.7677/ynzwyj201413209

• Articles •     Next Articles

Leaf Venation and Its Systematic Significance in Sapindaceae of China

 CAO  Li-Min-1、2, WANG  Zhi-Xin-1, CAO  Ming-3, LIU  Jian-Hui-1, LIN  Qiong-1, JIA  Nian-He-2   

  1. 1 Department of Life Sciences, Hengyang Normal University, Hengyang 421008, China; 2 Guangxi Institute of Botany,
    Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China; 3 South China
    Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
  • Received:2013-10-07 Online:2014-07-25 Published:2013-12-02
  • Supported by:

    中国科学院华南植物园及国家自然科学基金 (31360038)


 Leaf venation of 27 species representing 25 genera of Sapindaceae (sstr.) of China was investigated for the first time. The pinnate venation pattern in most species is either camptodromous, or craspedodromous. Three types of leaf blade margin were observed, ie., entire, toothed and partite. The secondary veins are branched or unbranched. Most species have intersecondary veins. The tertiary veins of most species are reticulate and percurrent. The areoles are regular or irregular. Veinlets are simple, branched or absent. The delimitations of Xanthoceroideae and Lepisanthes sensu lato are supported by leaf venation characters. The close relationships among Dimocarpus, Litchi and Nephelium are supported by the evidence from leaf venation. A key to the species of Sapinaceae based on leaf venation characters is presented.

Key words: Sapindaceae, Hippocastanaceae, Aceraceae, Leaf venation, Systematic significance

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