| 中国蓼属植物花粉形态的研究 |
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| 引用本文： | 王建新,冯志坚.中国蓼属植物花粉形态的研究[J].植物分类学报,1994,32(3):219-231. |
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| 作者姓名： | 王建新 冯志坚 |
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| 作者单位： | 辽宁中医学院中药系，华东师范大学生物系 沈阳 110032，上海 200062 |
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| 摘 要： | 本文用光学显微镜和扫描电镜对国产44种2变种蓼属植物的花粉形态进行了观察。除了前人报道的31种外，其中15种为首次报道。本属花粉形态多类型，有球形、近球形、近扁球形、近长球形及长球形；从萌发孔来看，有三沟型、三孔沟型、散沟型及散孔形：外壁纹饰有颗粒-穿孔、微刺-穿孔、微刺-凹穴、细网状、皱块状及粗网状。根据这些特征将花粉划分为10种类型，其中西伯利亚蓼型(Sibir-icum-type)为本文首次提出。文中对本属的分类问题进行了探讨，不支持Steward(1930)将本属划分为8个组的意见，而认为应将本属划分为11个组。
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| 关 键 词： | 花粉形态 蓼科 蓼属 |
A STUDY ON THE POLLEN MORPHOLOGY OF THE GENUS POLYGONUM IN CHINA |
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| Wang Jian-xin.A STUDY ON THE POLLEN MORPHOLOGY OF THE GENUS POLYGONUM IN CHINA[J].Acta Phytotaxonomica Sinica,1994,32(3):219-231. |
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| Authors: | Wang Jian-xin |
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| Abstract: | Pollen morphology of 44 species and 2 varieties in the genus Polygonum (Polygo-naceae) in China was examined by means of both light microscope (LM) and scanning electron microscope (SEM). Pollen grains are spheroidal or subspheroidal, prolate or subpro-late, suboblate; 3-colpate, 3-colporate, pantoporate, pantocolpate. The ornamentation of exine is finely or coarsely reticulate, rugulate, granulate-perforate, microechinate-perforate or microechinate-foveolate under SEM.
Based on the characteristics ten pollen types are recognized and described, i. e. Acono-gonon-type, Cephalophilon-type, Bistorta-type, Avicularia-type, Convolvulus-type, Sibir-icum-type, Tiniaria-type, Fagopyrum-type, Amphibium-type and Persicaria-type. A key to the types is provided.
According to the pollen types, the authors disagree with Steward's (1930) treatment which divided the genus into eight sections, and consider the division of the genus into eleven sections more reasonable. |
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| Keywords: | Pollen morphology Polygonaceae Polygonum |
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