竹属及其近缘属叶表皮微形态特征*

摘要/Abstract

摘要：

用扫描电镜和光学显微镜对竹属( Schiz ostachyum Nees) 7 个种, 及其近缘的梨竹属( Melocanna
Trin. ) 、泡竹属( Pseudostachyum Munro) 、薄竹属( Leptocanna Chia et H. L. Fung) 各1 个种以及空竹属
( Cephalostachyum Munro) 6 个种的叶表皮微形态特征进行了观察。结果表明竹叶下表皮乳突的形状和在气
孔器上及周围的排列式样在这5 个属中各有不同, 具有重要的分类学和系统学价值。同时我们的结果不支
持广义的竹属; 而梨竹属、空竹属和泡竹属则被支持独立成属。另外, 薄竹( Leptocanna chinensis) 和
红毛竹( Schiz ostachyum sanguineum ) 的叶表皮微形态特征非常接近空竹属; 香糯竹( Cep halostachyum
pergracile) 和金毛空竹( C1 virgatum) 的叶表皮微形态特征则十分接近竹属。

关键词: 竹属, 梨竹亚族竹亚科, 叶表皮, 微形态, 分类学

Abstract:

Micromorphological characters of leaf epidermis of 16 published species from Schizostachy um Nees and its allies
( including Melocanna Trin. , Pseudostachyum Munro, Leptocanna Chia et H. L. Fung and Cephalostachyum Munro)
were examined by both light and scanning electron microscopies. The results indicated that the papillae forms and distributional
patterns on the abaxial surface were taxonomically informative at the generic level. The characters of papillae did not
support Schiz ostachyum sensu lato; meanwhile, it was supported that Melocanna, Pseudostachyum and Cep halostachyum
were better to be treated as separate genera respectively. Furthermore, it seemed to be more appropriate to place Leptocanna
chinensis and Schizostachyum sanguineum in Cep halostachyum; and to place Cephalostachyum pergr acile and C1 virgatum
in Schizostachy um .

Key words: Schizostachyum, Melocanninae, Bambusoideae, Leaf epidermis, Micromorphology, Taxonomy

中图分类号:

Q 944

杨汉奇1、 2, 王红1, 李德铢1**. 竹属及其近缘属叶表皮微形态特征*[J]. Plant Diversity, 2006, 28(03): 261-267.

YANG Han-Qi- , Wang-Hong-, Li-De-Zhu-**. Micromorphological Study on Leaf Epidermis of Schizostachyum and Its Allies ( Poaceae: Bambusoideae)[J]. Plant Diversity, 2006, 28(03): 261-267.

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