斑龙芋属(天南星科) 及近缘属植物的叶表皮形态

Plant Diversity ›› 2005, Vol. 27 ›› Issue (06): 629-638.

斑龙芋属(天南星科) 及近缘属植物的叶表皮形态

李爱花, 管开云, 王仲朗

中国科学院昆明植物研究所

收稿日期:2005-03-15 出版日期:2005-10-25 发布日期:2005-10-25
通讯作者: 王仲朗

Characters of Leaf Epidermis in Genus Sauromatum (Araceae) and It’s Relative Genera

LI Ai-Hua , GUAN Kai-Yun , WANG Zhong-Lang

Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650204 , China

Received:2005-03-15 Online:2005-10-25 Published:2005-10-25
Contact: WANG Zhong-Lang

摘要/Abstract

摘要： 光镜、电镜下观察了天南星科天南星族下斑龙芋属2 个种及近缘属13 个种植物的叶表皮形态特征。实验结果显示, 4 属植物的叶表皮组成及其形态特征较相似, 属间不存在明显差异, 但某些特征在种间存在差异, 可作为种的鉴别特征。叶表皮特征支持将单籽犁头尖和昆明犁头尖两个种合并为一个种。15 个种的气孔器均具有2 个副卫细胞, Stebbins and Khush 认为这是气孔器类型中较具2 个以上副卫细胞更进化的一种类型, 而天南星科大多数族的气孔器都具有2 个以上的副卫细胞, 这也证明了天南星族是天南星科较进化的族。

关键词: 斑龙芋属, 天南星科, 叶表皮FONT

Abstract: Leaf epidermis of 2 species in genus Sauromatum Schott were examined under light microscope and scanning electron microscope ( SEM) and compared with that of 13 species in genera Typhonium, Pinellia and Arisaema in the same tribe Area of Araceae . The result reveals that the characters of leaf epidermis between the several genera generally are very similar . However , some of the characters in the species of the same genus are variable and can be used to identify its species . The characters of leaf epidermis support to merge Typhonium kunmingense into Typhonium calcicolum . The stomata apparatus of 15 species are all brachyparacytic types with 2 subsidiary cells . This type of stomata apparatus is considered more evolutional than that with more than 2 subsidiary cells which existed in majority tribes of Araceae . This also verify some taxonomists’viewpoint that tribe Area is more evolutional in family Araceae .

Key words: Sauromatum

李爱花, 管开云, 王仲朗. 斑龙芋属(天南星科) 及近缘属植物的叶表皮形态[J]. Plant Diversity, 2005, 27(06): 629-638.

LI Ai-Hua , GUAN Kai-Yun , WANG Zhong-Lang. Characters of Leaf Epidermis in Genus Sauromatum (Araceae) and It’s Relative Genera[J]. Plant Diversity, 2005, 27(06): 629-638.

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