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三棱栎的花粉形态及其分类位置

王萍莉, 张金谈   

  1. 1(中国科学院成都生物研究所,成都)   2 (中国科学院植物研究所,北京)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1988-02-18 发布日期:1988-02-18
  • 通讯作者: 王萍莉

On the Pollen Morphology and Systematic Position of Trigonobalanus doichangensis

Wang Ping-Li, Chang King-Tang   

  1. 1(Chengdu Institute of Biology, Academia Sirdca, Chengdu)
    2 (Institute of Botany, Academia Sinica, Beijing)
  • Received:1900-01-01 Revised:1900-01-01 Online:1988-02-18 Published:1988-02-18
  • Contact: Wang Ping-Li

摘要:

本文就壳斗科三棱栎属Trigonobalanus Forman在我国的新分布——三棱栎T.doicha-
ngensis 的花粉作了光学显微镜、扫描电镜及透射电镜观察。从花粉的形状、萌发孔类型及外
壁结构看,三棱栎与本科其余各属均不同,在壳斗科中确属一个独特类型。

关键词: 壳斗科, 三棱栎, 花粉形态, 亚显微结构

Abstract:

The present paper describes the pollen morphology of Trigonobalanus doichan-
gensis (A. Camus) Forman of Fagaceae. Comparative study on pollen grains was carried out
by means of light microscope, scanning and transmission electron microscope.
      The pollen grains of T. doichangensis are subspheroidal or suboblate but  in polar view
they are subtriangular, and in equatorial view they are subcircular  they  are  27.3,  23.1-
29.4)×27.3(25.2-29.4) μm in size and 3-colporate goniotreme.  The exine is 2-layered, 2.4-
4.2μm, thick in apocolpia.  The sexine cosists of tectum, bacules and endonexine under TEM.
      On the basis of pollen shape, type of aperture and exine structure the pollen grains of T.
doichangensis are distinguishable, from those of other genera in Fagaceae and it may belong to
a new type of Fagaceae.

Key words: Fagaceae, Trigonobalanus doichangensis, Pollen morphology, Ultrastructure.