中国特有种丁茜形态描述的修订及新分布区的报道

王泽欢1; 2; $21; $21; $21*

引用本文:	王泽欢1，2，刘恩德1，向春雷1，彭华1*.中国特有种丁茜形态描述的修订及新分布区的报道[J].广西植物,2011,(5):569-571.[点击复制]
	WANG Ze Huan1，2， LIU En De1， XIANG Chun Lei1， PENG Hua1*.Revised description and new distribution report of Trailliaedoxa gracilis (Rubiaceae)， an endemic species of China[J].Guihaia,2011,(5):569-571.[点击复制]

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中国特有种丁茜形态描述的修订及新分布区的报道
王泽欢1，2，刘恩德1，向春雷1，彭华1*
1.中国科学院昆明植物研究所生物多样性与生物地理学重点实验室， 昆明 650204;2.中国科学院研究生院，北京 100049

摘要:

对中国特有种丁茜进行了形态描述的修订，并报道了其一新分布区。长期以来，丁茜一直被认为仅分布于金沙江流域，但作者们对绿汁江（红河上游元江的一级支流）进行植被考察时发现了其分布，说明丁茜在红河流域亦有分布，从而形成金沙江－红河间断分布的格局。此发现为金沙江从古红河改道的观点提供了新的证据。

关键词: 丁茜修订新分布中国特有种

DOI：

分类号:Q949.781.1

基金项目:

Revised description and new distribution report of Trailliaedoxa gracilis (Rubiaceae)， an endemic species of China

WANG ZeHuan1，2， LIU EnDe1， XIANG ChunLei1， PENG Hua1*

1.Key Laboratory of Biodiversity and Biogeography， Kunming Institute of Botany， Chinese Academy of Sciences， Kunming 650204， China;2.Graduate School of Chinese Academy of Sciences， Beijing 100049， China

Abstract:

This study presents a revised description and new distribution of Trailliaedoxa gracilis，an endemic species of China. T.gracilis has been regarded to be restricted to the Jinsha drainage area in southwestern China，but during the vegetation investigation, we found it in the region along the Lvzhi River(a tributary stream of the Yuanjiang River，the upper part of the Honghe River). Therefore,T.gracilis was proved to exsit in Jinsha drainage areas at the same time，thus there was a disjunctive distribution between Jinsha and Honghe drainage areas. The discovery provided new evidence to the viewpoint that ancient Jinsha River was ever diverted from the ancient Honghe River.

Key words: Trailliaedoxa gracilis revision new distribution China endemic species