丹霞山竹类一新变种及小麻竹补充描述

A New Bamboo Variety from Danxia Mountain and Morphological Supplement to Dendrocalamus pulverulentoides

描述了产自丹霞山国家级自然保护区竹类一新变种——丹霞单枝竹(Bonia saxatilis var.danxiaensis X.Li,J.B.Ni&Y.H.Tong),该变种与单枝竹原变种(B.saxatilis var.saxatilis)的区别在于箨舌和叶舌的边缘不具长纤毛。本文编制了单枝竹及其变种的检索表,还对新近描述的产自丹霞山的另外一种竹类——小麻竹(Dendrocalamus pulverulentoides N.H.Xia,J.B.Ni,Y.H.Tong&Z.Y.Niu)的部分营养体特征进行了修正,并补充描述了其花部形态。

Bonia saxatilis var.danxiaensis,a new variety from Danxia Mountain National Nature Reserve is described and illustrated.It differs from the nominate variety by having ligules of both culm and foliage leaves without long cilia on the margin.The key to the varieties of Bonia saxatilis is provided here.We also emend the descriptions of some vegetative characters and provide a supplementary description of floral morphology for another species newly described from Danxia Mountain,Dendrocalamus pulverulentoides.