关于毛枝榆学名的订正

A CRITICAL NOTE ON THE SCIENTIFIC NAME OF THE HAIRYSHOOT ELM

产于喜马拉雅山区和云南的Ulmus androssowii Litw.var.vir-gata(Planch.)Grudz.与产于四川西南部的Ulmus wilsoniana Schneid.var.subhirsuta Sehneid.,形态十分酷似。傅立国先生研究后将其归并是合适的。本变种主要特征为小枝密被柔毛,果核部分常呈淡红色,红色或淡紫色。然而Ulmus androssowii Litw var.virgata(Planch.)Grudz.的组合是基于一个晚出同名(Ulmus virgata Planch.1848,non Roxb.1832),是一个不合法的名称,故毛枝榆采用现在组合名,即:Ulmus androssowii Litw.var.subhirsuta(Schneid.)P.H.Huang,F.Y.Gao et L.H.

The Ulmus androssowii Litw. var. virgata (Planch.) Grudz. from moun-taionus regions of Himalaya and Yunnan, and the Ulmus wilsoniana Schneid.var. subhirsuta Schneid. from south-western Sichuan are very similar. The-re seen to be no valid character which separate the two. Therefore, the re-duction of Ulmus wilsoniana Schneid. var. subhirsuta Schneid. to Ulmusandrossowii Litw. var. virgata (Planch.) Grudz. is reasonable by taxonomi-sts. This variety is easily to be distinguished from type in its densely pu-bescent branchlets and reddish, red or purplish-red nutlets. However, theUlmus androssowii Litw. var. virgata (Planch.)Grudz. based on later homo-nym (Ulmus virgata Planch. 1848 non Roxb. 1832) is an illegitimate name,so the present combination.