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中国薯蓣属花粉形态的初步研究

舒璞   

  1.  (江苏省植物研究所,南京)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1987-10-18 发布日期:1987-10-18
  • 通讯作者: 舒璞

Pollen Morphology of Dioscorea in China

Su Pu   

  1. (Jiangsu Institute of Botany, Nanjing)
  • Received:1900-01-01 Revised:1900-01-01 Online:1987-10-18 Published:1987-10-18
  • Contact: Su Pu

摘要:

本文作者对我国的薯蓣属Dioscorea L. 5组33种植物的花粉形态,用光学显微镜进行
  了系统的观察,并用扫描电子显微镜观察了其中一些代表类型。本属花粉有二种类型,即单沟
  型和双沟型。单沟型为原始型,双沟型则为进化类型。花粉资料支持了目前对该属分类的意见。

关键词: 薯蓣属, 花粉形态

Abstract:

This paper deals with pollen morphology of 33 species belonging to 5 sections of
Dioscorea in China.  They were examined under both LM and SEM.
       The pollen grains of Sect. Stenophora are monocolpate with the size of 17-25.5×26.8-
39.1μm, the exine is reticulate, striate, parforate-reticulate or cerebro-reticulate, while those of the
other sections are bicolpate, reticulate or cerebro- reticulate with the size of 19.2-26.7×13.9-
23.1μm.
       Based on palynological data Sect.  Stenophora may be considered primitive and Sect.
Enantiophyllum the most advanced in Dioscorea.

Key words: Pallen Morphology, Dioscorea