中国忍冬科植物花粉形态及其在分类上的意义

中国科学院大学学报

中国忍冬科植物花粉形态及其在分类上的意义

胡嘉琪, 贺超兴

(复旦大学生物系，上海)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1988-10-18 发布日期:1988-10-18
通讯作者: 胡嘉琪

Pollen Morphology of Caprifoliaceae from China and Its Taxonomic Signi-ficance

Hu Chia-Chi, He Chao-Xing

(Department of Biology, Fudan University, Shanghai)

Received:1900-01-01 Revised:1900-01-01 Online:1988-10-18 Published:1988-10-18
Contact: Hu Chia-Chi

摘要/Abstract

摘要：

本文报道了我国忍冬科54个样品，包括12属31种植物的花粉扫描电镜观察的结果, 描述了本科各属主要代表种的花粉形态特征; 及不同种的花粉类型，为化石花粉鉴定提供参考资料, 同时根据花粉的形状、大小、萌发孔及外壁雕纹的异同，讨论本科及科以下分类群的位置和系统关系。

关键词: 花粉形态, 忍冬科

Abstract:

The pollen morphology of 54 samples representing 12 genera and 31 species was

investigated with the aid of scanning electron microscope. Observed were pollen grains of

Sambucus, Viburnum, Lonicera, Leycesteria, Heptacodium, Linnaea, Abelia, Dipelta, Kolkwitzia,

Symphoricarpos, Triosteum, Weigela. Based on the shape, size, position and number of aper-

ture, exine sculpture, three types are recognized: 1. Pollen grains subprolate, less frequently

prolate, rather small, 3-colporate, exine reticulate, as in Sambucus, Viburnum. 2. Mostly sphe-

roidal, subolate, bigger than the former, also 3-colporate, exine spinulose as in Lonicera, Ley-

cesteria, Heptacodium, Triosteum, Linnaea, Abelia, Dipelta, Kolkwitzia, Symphoriocarpos, Wei-

gela. 3. Spheriodal, more or less flattend, exine scabrous as in Abelia section Zabelia and

Lonicera section Isoxylosteum.

1. The systematic position of Caprifoliaceae: It has been generally treated as a member

of the order Rubiales together with Rubiaceae, Valeriaceae and Dipsacaceae on floral characters.

In respect to serological character, it has a close relationship with Cornaceae, and was placed

in Araliales. The above stated 2nd and 3rd types of pollen grains are similar to those of

Patrinia (Valerianaceae), Scabiosa (Adoxaceae), Cornus (Cornaceae), and the pollen grains

of the 1st type are similar to those of Styraceae, Genetianaceae and Araliaceae. Taking the in-

formation so far available into consideration, the authors agree to the Cronquists treatment re-

taining Caprifoliaceae in the order Dipsacales together with Adoxaceae, Valerianaceae and

Dipsacaceae.

2. The division of tribes: Formerly Sambuceae included the genera Sambucus and Vi-

burnum. Fritsch (1891) segregated Viburnum from Sambuceae and suggested a new tribe Vi-

burneae including Triosteum. There is distinct difference in palynological features between

these two genera. The exine sculpture of Viburnum is reticulate, but that of Triosteum is

spinulose. It is reasonable to separate another new tribe, Triosteae, from Viburneae.

3. The pollen morphorlogy of several Chinese endemic genera, such as Heptacodium,

Dipelta, Kolkwitzia resembles that of Lonicera, Leycesteria, Linnaea, Symphoricarpos, Abelia,

Triosteum. This evidence supports the foregoing treatment including them in Caprifoliaceae.

4. Two different exine sculptures are shown in sections of the genera Abelia and Loni-

cera. In Abelia the exine of the section Euabelia is spinulose, but that of the section Zabelia

is scabrous. Likewise, in Lonicera, the exine of the section Isoxylosteum is scabrous, while that

of other sections such as Nintooa, Isika, Lonicera, subgenus Caprifolium, is spinulose. It shows

that pollen morphology is one of diagnostic characters for section division.

Key words: Pollen Morphology, Caprifoliaceae

胡嘉琪, 贺超兴. 中国忍冬科植物花粉形态及其在分类上的意义[J]. 中国科学院大学学报.

Hu Chia-Chi, He Chao-Xing. Pollen Morphology of Caprifoliaceae from China and Its Taxonomic Signi-ficance[J]. .

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