寮國南部薑科蝴蝶薑屬新種——Hedychium chayanianum Wongsuwan

A New Species of Hedychium (Zingiberaceae) from Southern Laos

本文描述寮國南部蝴蝶薑屬（薑科）新種——Hedychium chayanianum Wongsuwan，並提供圖片。此一新種可以其葉下表面被毛、較長的花萼及花冠筒、苞片中具1-3朵花以及二裂的唇瓣等特徵與H. villosum Wall.區分，與其他相關種的關係也一併予以討論。

A new species of Hedychium (Zingiberaceae), H. chayanianum Wongsuwan, from southern Laos, is described and illustrated. This new taxa can be differentiated from H. villosum Wall. by its hairy lower leaf surface, longer calyx and corolla tubes, 1-3-flowered bracts, and the 2-cleft labella. Relationship with other related species is also discussed.