广义凹唇姜,中国姜科凹唇姜属一新记录种

Boesenbergia quangngaiensis N. S. Ly, A Newly Recorded Species of Zingiberaceae from China

报道了姜科(Zingiberaceae)凹唇姜属(Boesenbergia Kuntze) 1个中国新记录植物:广义凹唇姜(B. quangngaiensis N. S. Ly),其叶背绿色,被白霜,穗状花序顶生,花交替排列成2列,偏生于花序同一侧,唇瓣近圆形或宽倒卵形,基部中间具深红色带,顶端中部具紫红色斑点,可与同属其他种区别。提供了该植物的形态描述、彩色图片及中国凹唇姜属分种检索表。

Boesenbergia quangngaiensis N. S. Ly, a newly recorded species of Zingiberaceae from China was discovered and reported. It can be distinguished from the other species of Boesenbergia by the greenish and abaxially glaucous leaves, the terminal inflorescence, the flowers alternately 2-ranked and facing one way, the broadly obovate labellum, centrally with deep red band at the base, apical purple-red patch in the middle. Chinese descriptions, colour plate of the newly recorded species and a key to species of Boesenbergia in China were provided.