云南南部箬竹属(禾本科)一新种——金平箬竹

Indocalamus jinpingensis T. P. Yi & J. Y. Shi, a new species of the Gramineae from South Yunnan, China

报道了产于云南南部的禾本科Gramineae箬竹属Indocalamus一新种——金平箬竹I.jinpingensisYi&J.Y.Shi。该新种在形体上相似胜利箬竹I.victorialisKengf.,但秆每节仅1分枝,节间实心或几实心,节下密生一圈灰白色绒毛,无纵肋纹,节内密被灰白色绒毛,秆环一侧很隆起;箨鞘背面无毛或被稀疏棕色贴生瘤基小刺毛,而基部被微毛;末级小枝具叶4–5,叶鞘新鲜时很光亮,上部紫色,叶片具次脉9–12对,易于区别。

A new species of the genus Indocalamus （Gramineae） from South Yunnan, China, I. jinpingensis Yi ＆ J. Y. Shi, is described and illustrated. The new species is similar to I. victorialis Keng f. in habit, but differs by branch solitary at each node of culm, internodes solids or nearly solids, infranode densely covered with a ring of pale tomentum, not striped, intranode densely pale tomentose, culm-node very swollen on one side; culm-sheaths glabrous or sparsely brown adpressedly tuberculate hispidulous, pubescent at base; leaves 4-5 at ultimate branchlets, leaf-sheaths lossy when fresh, violet near apex, blades with 9-12 lateral veins on each side.