中国蓼属植物二新种

报道了中国蓼属两新种。蜀蓼（Polygonum shuense）与大理蓼（P.subscapsum）相似，但基生叶的基部渐狭，沿叶柄下延，边缘具圆齿，花白色，花柱3，离生，瘦果长卵形，无光泽可以区别。察隅蓼（P.chayuum）产西藏，这个新种的茎不分枝，自基部至中部无叶，仅有托叶鞘，叶着生于茎的上部，这些特征奇特，明显不同于其它种类。

Two New Species of Polygonum from China

Polygonum shuense and P.chayuum, two new species of Polygonum from China, are described. P.shuense is similar to P.subscapsum, but differs by the radical leaves crenate at margins, and altenuate and decurrent at base, flowers white, styles 3 and free, and achenes long ovate and opaque. P.chayuum is distributed in Xizang, with stem unbranched, leaves on the upper part of stem, and only ochreas on the lower part of the stem. Such characters are unique in Polyonum and differ apparently from those of other species.