老挝植物一新记录属——泽薹草属（泽泻科）

Caldesia Parl., A New Record Genus of Alismataceae to Laos

摘要:

首次报道老挝泽泻科（Alismataceae）一新记录属——泽薹草属（Caldesia），及新记录种——宽叶泽薹草（Caldesia grandis）。宽叶泽薹草为旧世界广布属泽薹草属中唯一叶宽大于叶长的物种，原记载分布在中国、孟加拉国、印度和马来西亚。同时，还提供了宽叶泽薹草的描述和其原生境图片。

Abstract:

Caldesia Parl. and C. grandis Sam. are reported as new records from central Laos. Caldesia grandis, the only species with leaves of which length shorter than width in the Old World wide-spread genus Caldesia, is originally recorded in China, Bangladesh, India and Malaysia. The description and photos in natural habitats of the species are here provided.