中国刺蕊草属(唇形科)植物一新记录种

A Newly Recorded Species of Pogostemon Desf. (Lamiaceae) from China

摘要:

报道了中国唇形科(Lamiaceae)刺蕊草属一新记录种——香薷状刺蕊草(Pogostemon elsholtzioides Benth.),该种在中国产于西藏墨脱县,凭证标本保存在PE。该种在喜马拉雅地区分布广泛,与特产于云南西北部地区的狭叶刺蕊草(P. dielsianus Dunn)的主要区别为：花萼钟形,长3~3.5 mm,花萼齿长为花萼筒的1/3~1/2,花冠长约4.5 mm。

关键词:中国;刺蕊草属;唇形科;香薷状刺蕊草;新记录种

Abstract:

Pogostemon elsholtzioides Benth. is newly recorded from China. It was discovered in Mêdog Xian, Xizang, China. Its vouchers are kept in the herbarium of Institute of Botany, Chinese Academy of Sciences (PE). The species is widely distributed in Himalayan regions. It is similar to P. dielsianus Dunn in habit, but differs from it in having calyx campanulate, 3-3.5 mm long, the ratio of the length of calyx teeth and calyx tube is 1/3-1/2, corolla ca. 4.5 mm long.

Key words:China;Pogostemon;Lamiaceae;Pogostemon elsholtzioides;New record