梧桐科分类学研究评述

Review of taxonomic studies on Sterculiaceae

梧桐科(Sterculiaceae)是锦葵目中的一个多型科,主要分布于热带和亚热带地区,只有少数种可分布到温带地区。由于该科植物的形态特征较为多样化,至今对于它的范围和所包含的属种数目在各国学者间仍没有达成共识。该文从梧桐科的分类地位和系统关系、属的分类地位和亲缘关系以及分类学新特征在梧桐科分类中的应用3个方面入手,分析了梧桐科分类学研究的历史、现状和存在的问题,特别是把来自分子资料的研究结果与传统分类进行了比较分析,试图为梧桐科的分类学研究提供更多的帮助。

Sterculiaceae is a polytypic family in Malvales, and is mainly distributed in the tropics and subtrop-ics,only a few in temperate regions. In view of the abundant diversities of morphological characteristics, there were no uniform agreement on the delimitation and the number of genera among different authors in the world. In order to provide more information for the further taxonomic studies on Sterculiaceae, three problems are carefully analyzed here,which are;(1)The taxonomic position and systematic relations of the family; (2) The taxonomic position and relationships of some genera in this family; (3)The application of some new taxonomic characteristics to the classification of the family. Meanwhile,the historical and present situations of the classification are also researched,and some contentious problems are pointed out. In particular,a comparison between the traditional classification and the results from molecular data was made here.