贵州东南部玉山竹属一新种及空竹一新异名

A New Species of Yushania Keng f. (Poaceae) from Southeast Guizhou in China and a New Dissenting Name of Cephalostachyum fuchsianum Gamble

摘要: 贵州雷公山顶产有玉山竹属1新种,现定名为雷公山玉山竹。这个种近似于盈江玉山竹Yushnia glandulosaHsueh etYi,不同在于秆挺直;小枝具叶(2)3~5,叶片长达12 cm,宽达1.9 cm,次脉(3)5对~6对,边缘近于平滑或上部具小锯齿。近期发表的毒空竹,经研究,它就是空竹的异名。

Abstract: This paper reported a new species of Yushania Keng f. from Southeast Guizhou. Yushnia leigongshanensis Yi et C. H. Yang is similar to Y. glandulosa Hsueh et Yi,but diverging from by its straight culm,leaves (2) 3~5 in every branchlet,laminas up to 12 cm long and 1.9 cm bord,second viens (3) 5~6 on each side,near entire or up serrulate. Cephalostachyum virulentum Y. M. Yang et Fan Du is not name of the C. fuchsianum Gamble.