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我国曼陀罗属的花粉形态及其在分类上的意义

1彭广芳, 1周曙明, 1张素芹,1 赵东坡, 2张玉龙,2 路安民   

  1.  1(山东省中医药研究所,济南)
    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:1985-02-18 发布日期:1985-02-18
  • 通讯作者: 彭广芳

Pollen Morphology of Chinese Datura and Its Taxonomic Significance

1Peng Guang-Fang, 1Zhou Shu-Ming, 1Zhang Su-Qin, 1Zhao Dong-Po, 2Zhang Yu-Long, 2Lu An-Ming   

  1. 1 (Institute Of Traditional Chinese Medicine and Materia Medica of Shandong, Jinan)
     2(Institute of Botany, Academia Sinica, Beijing)
  • Received:1900-01-01 Revised:1900-01-01 Online:1985-02-18 Published:1985-02-18
  • Contact: Peng Guang-Fang

摘要:

本文收集了国内曼陀罗属(Datura L.)  11个不同的生态型,在光学显微镜和扫描电镜下,进行了花粉粒形态的比较观察。该属花粉粒均为球形或稍扁,具3孔沟型。花粉粒外壁表面的纹饰可作为分属、分组、分种的依据之一。可分为三个类型,与植物形态分类基本一 致,即:具皱波-细网状纹饰(曼陀罗组); 具网状条纹或条纹,条脊表面有细颗粒或粗糙(洋金花组); 具条纹,条脊表面有蚕体状环纹及细颗粒(木本曼陀罗组)。种以下的变种或栽培变种,花粉粒的形态特征不足以作为分类的依据。

关键词: 曼陀罗属, 花粉形态, 外壁纹饰

Abstract:

The pollen grains of 11 taxa of Chinese Datura were examined under light microscope and scanning electron microscope.  All of them are 3(-4)-colporate.  The exine ornamentation is so distinct as to allow the identification of individual sections and species, and may be divided into three types.  The division is consistent with the taxonomy based on gross morphology i.e. rugulato-reticulate (Sect. Stramonium); striate or striato-reticulate, with some granules on the surface of the lirae, or scabrous (Sect. Dutra); striate with some rings on the surface of the lirae, looking like silkworm (Sect. Brugmansia).  The varieties or cultivated forms are not sufficiently distinct from each other in the pollen grains as observed in this investigation.

Key words: Datura, pollen morphology, Exine ornametation