| 茶藨子属植物的花粉形态及其在分类学上的意义 |
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| 引用本文： | 黄普华,叶万辉.茶藨子属植物的花粉形态及其在分类学上的意义[J].中国科学院研究生院学报,1989,27(5):378-385. |
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| 作者姓名： | 黄普华 叶万辉 |
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| 作者单位： | (东北林业大学，哈尔滨) (黑龙江中医学院，哈尔滨) |
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| 摘 要： | 本文采用光学显微镜和扫描电镜对茶藨子属Ribes L. 植物19种、2变种的花粉形态进行了观
察。根据本属植物的花粉，在内萌发孔周围有一外萌发孔，有别于广义的虎耳草科Saxifragaceae(s．
lato各类群的特点，结合本属其它形态特征，作者支持将茶藨子属独立为科的意见。从观察材料看，可
将其归之为4个花粉类型：即醋栗型(Grossularia-type)、茶藨子型(Ribes-type)、拟醋栗型(Grossu-
larioidestype)和单性花茶藨子型(Berisia-type)，这正好与分类学家根据形态划分的4个亚属相吻合，
而且它们之间存在着密切的联系，是一个不可分割的自然群。据此，作者认为过去划分的亚属是合理的，醋栗类群不独立成属，似更自然。
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| 关 键 词： | 茶藨子属 花粉形态 分类学 |
Pollen Morphology of Ribes L. and Its Taxonomic Significance |
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| Huang Pu-Hwa,Ye Wan-Hui.Pollen Morphology of Ribes L. and Its Taxonomic Significance[J].Journal of the Graduate School of the Chinese Academy of Sciences,1989,27(5):378-385. |
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| Authors: | Huang Pu-Hwa Ye Wan-Hui |
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| Abstract: | The pollen morphology of 19 species and 2 varieties in the genus Ribes Linn. was
examined under light microscope (LM) and scanning electron microscope (SEM).
Pollen grains of the genus are subspheroidal, 15.0-41.67 μm in diameter, more or less
circular to obtusely quadrangular in outline with all sides slightly concave, or with alternating
concave sides, or elliptic under SEM, 5-, 6-zonocolporate or 5-, 6-pantoporate. Exine
usually thin, 1.0-1.5μm, without visible differentiation between nexine and sexine. Exine is
psilate or sometimes coarsely or finely granular or verrucate.
The most important characteristic of pollen in this genus is the presence of a “rugoid
Area” (ectoaperture) around the endoaperture under SEM. It is different from the other taxa
of Saxifragaceae (s. 1.). Based on the pollen morphology and the external morphological char-
acteristics, the treatment of the genus Ribes as an independent family (i.e. Grossulariaceae)
by many taxonomists is reasonable.
The pollen grains of the genus can be divided into 4 types from the materials examined:
(1) Grossularia-type. ectoaperture colpate, with two endoapertures, exine psilate. (2) Ribes-type:
ectoaperture porous or colpate, with one or two endoapertures, exine mostly psilate. (3) Gros-
sularioides-type: ectoaperture porous, circular, small, with one endoaperture, exine verrucate.
(4) Berisia-type: ectoaperture porous, subcircular to circular, large, with one endoaperture ex-
ine mostly psilate. The observation made by the present authors supports the subdivision of
Ribes into the subgenera Grossularia, Ribes, Grossularioides and Berisia by many taxonomists
based on the other morphological characteristics, and the observation by the present authors is
in accordance with this view. Pollen information also shows the close relationships among thefour subgenera and therefore they belong to the same genus — Ribes. |
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| Keywords: | Ribes Pollen Morphology Taxonomy |
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