%A YANG Chen-Xuan, CHEN Li, WANG Juan, YANG Yu-Ming, LI Lu %T Pollen Morphology of the Chinese Endemic Clematoclethra (Actinidiaceae) and Its Taxonomic Implications %0 Journal Article %D 2014 %J Plant Diversity %R 10.7677/ynzwyj201414015 %P 569-577 %V 36 %N 05 %U {https://journal.kib.ac.cn/CN/abstract/article_33347.shtml} %8 2014-09-25 %X

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.