四川方竹属一新种

A New Species of Chimonobambusa Makino from Sichuan,China

本文报导了四川方竹属一新种,即蜘蛛竹Chimonobambusa zhizhuzhu Yi。这个新种与屏山方竹Ch.pingshanensis Yi et J.Y.Shi相近似[1～3],但节间初时灰绿色,密被灰色瘤基小硬毛,很粗糙;气生根刺在每节上(5)14枚～25枚,较短,长1.5 mm～2 mm;箨鞘背面紫褐色,被淡黄白色斑块,箨片直立;小枝具叶1枚～2(3)枚,叶鞘无毛,边缘亦无纤毛;叶耳及鞘口繸毛缺失或稀具1枚～2枚纤弱繸毛,易于区别。

This paper reports a new species of the Bambusoidiae from the Sichuan,China,namely Chimonobambusa zhizhuzhu Yi.This new species is similar to Chimonobambusa pingshanensis Yi et J.Y.Shi,But internodes and grey-green on the young,dense minute grey-tuberculate-sclerotrichites,and most scabrous.Its aerial toots-spiniforms（5） are 14～25 on the every node,shorter and 1.5 mm～2 mm long;Culm sheath is purple-brown in the back,and has pale yellow-white spots;Leaves vary from 1 to 2（3） on per branchlet.Sheath is glabrous,ciliate is absent,auricles are absent,oral setae is absent or rare with 1～2.