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

doi:10.7677/ynzwyj201414015

Plant Diversity ›› 2014, Vol. 36 ›› Issue (05): 569-577.DOI: 10.7677/ynzwyj201414015

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

杨晨璇1, 陈丽2, 王娟3, 杨宇明3, 李璐1

1 西南林业大学云南生物多样性研究院，云南昆明650224；2 中国科学院昆明植物研究所东亚植物多样性与生物地理学重点实验室，云南昆明650201；3 云南省林业科学院，云南昆明650204

收稿日期:2014-01-27 出版日期:2014-09-25 发布日期: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

YANG Chen-Xuan-1, CHEN Li-2, WANG Juan-3, YANG Yu-Ming-3, LI Lu-1

Actinidiaceae) and Its Taxonomic Implications YANG ChenXuan1, CHEN Li2, WANG Juan3, YANG YuMing3, LI Lu1** （1 Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming 650224, China; 2 Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; 3 Yunnan Academy of Forestry, Kunming 650204, China

Received:2014-01-27 Online:2014-09-25 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)

摘要/Abstract

摘要：

摘要：藤山柳属Clematoclethra为中国特有属，属内物种划分争议颇大。利用扫描电镜观察了该属14个居群的花粉形态，结果表明藤山柳属的花粉为小粒花粉，多为圆球形，具三拟孔沟，根据外壁纹饰可分为皱波状花粉、颗粒状花粉和细疣状花粉3种类型。花粉类型与植株毛被特征有一定相关性，对澄清藤山柳属的分类问题具有一定意义。

关键词: 藤山柳属, 花粉形态, 分类学意义

Abstract:

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 (Cscandens) 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 smallsized, usually spheroidal in shape, sometimes subprolate and prolate, with the aperture 3colporoidate, 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

中图分类号:

Q 944

杨晨璇, 陈丽, 王娟, 杨宇明, 李璐. 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.

YANG Chen-Xuan, CHEN Li, WANG Juan, YANG Yu-Ming, LI Lu. Pollen Morphology of the Chinese Endemic Clematoclethra (Actinidiaceae) and Its Taxonomic Implications[J]. Plant Diversity, 2014, 36(05): 569-577.

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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

Pollen Morphology of the Chinese Endemic Clematoclethra (Actinidiaceae) and Its Taxonomic Implications

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