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浙江菱属植物花粉形态研究

丁炳扬, 方云亿, 张慧明, 梁红, 赵烈   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1991-03-10 发布日期:1991-03-10
  • 通讯作者: 丁炳扬

Studies on the Pollen Morphology of Trapa from Zhejiang

Ding Bing-Yang, Fang Yun-Yi, Zhang Hui-Ming, Liang Hong, Zhao Lie   

  • Received:1900-01-01 Revised:1900-01-01 Online:1991-03-10 Published:1991-03-10
  • Contact: Ding Bing-Yang

摘要:

本文借助光镜和扫描电镜对浙江菱属Trapa L. 9种植物的花粉形态进行了观察,并讨
论了它们的分类学意义。结果表明:菱属植物花粉的立体形状、萌发孔的类型和位置,外壁纹
饰各种间均无差异,但花粉的大小、脊状附属物的高低与形态在各种间存在不同程度的差异,
在种类划分和探讨其亲缘关系上有参考价值。

关键词: 花粉形态, 菱属, 浙江

Abstract:

 In the present work, pollen grains of 9 species of Trapa L. from Zhejiang were ex-
amined under LM and SEM. They are subsphaeroidal or subprolate, obtuse-triangular in
polar view, elliptic or subrounded in equatorial view, and 3-colpate. In the equatorial area,
there are three ridge-shaped appendages which elongates along apertures toward two poles
and ultimately combined, the ornamentation of other part of exine is minute-verrucate. The
genus Trapa is uniform in shape of pollen grains, type and position of apertures and
ornamentation of exine, while differentiation can be found in size of pollen grains and shape
of ridge-shaped appendage. All of these provide valuable evidence for the classification of
Trapa and the verification of their affinities. The validity of Trapaceae, the evolutionary
trends of pollen morphology and the affinities of some species are discussed in this paper.

Key words: Pollen morphology, Trapa, Zhejiang, China