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Plant Diversity ›› 1992, Vol. 14 ›› Issue (S5): 1-3.

• 研究论文 •    

天南星科岩芋属和曲苞芋属的分类问题

李恒   

  1. 中国科学院昆明植物研究所
  • 出版日期:1992-12-26 发布日期:1992-12-26

NOTES ON THE CLASSIFICATION OF GENERA REMUSATIA AND GONATANTHUS IN ARACEAE

LiHeng A.Hay   

  1. Kunming Institute of Botany, Academia Sinica
  • Online:1992-12-26 Published:1992-12-26

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摘要：

岩芋属Remusatia Schott和曲苞芋属Gonatanthus Klotzsch是天南星科中芋亚科泉七族两个亲缘很近的属。两个属的共同特点是:具有气生芽条，芽条分校或不分枝，具多数珠芽。两个属的种具相同的染色体基数（2n=28），二倍体或三倍体。两属的唯一差别是：岩芋属的子房具侧膜胎座，曲苞芋属植物具基底胎座。但是，在同一个种内，胎座形式也有变化，有的种既有侧膜胎座，也有基底胎座如 Remusatia ornata和Gonatanthus yunnanensis。实际上两个属很难分开，有必要将两属合二为一。

关键词: 天南星科, 岩芋属;曲苞芋属, 分类

Abstract:

Remusatia Schott and Gonatanthus Klotzsch are two closely related genera of Colocasieae-Steudnerinae in Araceae. Both genera characteristically produce branched or unbranched aerial bulbiliferous shoots. All species of them with same basic chromosome num-bers ( 2n= 28) are diploid or triploid. Remusatia is distinguished from the genus Gonatanthus only on its parietal rather than basal placentation. But, the placentiaion is usu-ally various in the same species ( Remusatia ornata, Gonatanthus yunnanensis) . In fact Gonatanthus is so similar to Remusatia that we have to make a combination of them as following.

Key words: Araceae, Remusatia, Gonatanthus, Classification

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