中国特有属藤山柳属 (猕猴桃科) 的花粉形态及其分类学意义
收稿日期: 2014-01-27
网络出版日期: 2014-07-10
基金资助
国家自然科学基金地区基金 (31260045)；中国科学院生物多样性与生物地理学重点实验室资助项目 (KLBB201203)
Pollen Morphology of the Chinese Endemic Clematoclethra (Actinidiaceae) and Its Taxonomic Implications
Received date: 2014-01-27
Online published: 2014-07-10
Supported by
国家自然科学基金地区基金 (31260045)；中国科学院生物多样性与生物地理学重点实验室资助项目 (KLBB201203)
杨晨璇1 , 陈丽2 , 王娟3 , 杨宇明3 , 李璐1 . 中国特有属藤山柳属 (猕猴桃科) 的花粉形态及其分类学意义[J]. Plant Diversity, 2014 , 36(05) : 569 -577 . DOI: 10.7677/ynzwyj201414015
The genus Clematoclethra (Franch.) Maxim. (Actinidiaceae) is endemic in the temperate and subtropical regions in central and western China. Species delimitation in the genus has been highly controversial. It has been treated as including 20 species and four varieties or only one species (Cscandens) with four subspecies. In this paper, pollen grains of 15 individuals from 14 populations representing the genus Clematoclethra were examined under scanning electronic microscope (SEM). The pollen is smallsized, usually spheroidal in shape, sometimes subprolate and prolate, with the aperture 3colporoidate, and falls into three types in respect of exine sculpture, namely, rugulate, granulate, and finely verrucate. The types of pollen are somewhat correlated with the types of indumentum of plants, indicating that pollen morphology is helpful for the classification of Clematoclethra.
Key words： Clematoclethra; Pollen morphology; Taxonomic significance
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