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作 者 ：汪 健，杜 凡*，李云琴

期 刊 ：西北植物学报 2012年 3期 页码：616~618

关键词：新变种；鹅绒藤属；萝藦科；干旱河谷；云南；四川；

Keywords:new variety, Cynanchum, Asclepiadaceae, dry valley, Yunnan, Sichuan,

摘 要 ：报道并描述了滇川金沙江上游干旱河谷萝藦科一新变种——折叶白前（Cynanchum forrestii Schltr.var.conduplicatum J.Wang & F.Du）。新变种与原变种的区别在于：叶常对折，卵状披针形，先端渐尖，花冠和副花冠紫红色，每花萼的萼片之间有2个较大的及2（~4）个较小的腺体，花粉块近球形。

Abstract:Cynanchum forrestii Schltr.var.conduplicatum J.Wang & F.Du is described and illustrated from dry valley in the upper reaches of Jinshajiang River,Yunnan and Sichuan,China.It differs from var.forrestii in its leaf blade usually folded,ovate-lanceolate to rarely ovate,apex acuminate,corolla and corona blood-slained,2 larger and 2(~4) minor glands between each two sepals,pollinarium subglobular.

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