梨属植物的形态演化及地理分布研究

Morphological Evolution and Geographical Distribution of Pyrus

本文简要介绍了梨属植物分类研究的历史;对梨属植物的形态演化及地理分布的初步研究表明我国华北、华东地区为该属植物的现代分布中心,而该属植物的原始中心为我国西部或西南部的山区;该属植物在种的分布式样上表现出明显的东西和南北替代现象。

This article introduced the brief taxonomic history of genus Pyrus. Through the pilot study of genus Pyrus on morphological evolution and geographical distribution, we can know that North China and eastern China is the modern distribution centre. But the original centre of this genus should be in mountain areas of Chinese western or southwest. And distribution style of this genus be shown the obvious substitution phenomenon： the north-south substitution and east-west substitution.