广东竹类一新种——小麻竹

Dendrocalamus pulverulentoides(Poaceae:Bambusoideae),A New Bamboo Species from Guangdong,China

主要描述产自广东丹霞山的竹类植物一新种——小麻竹。该种形态上与麻竹、吊丝竹和粉麻竹接近,但区别在于该种秆节下及节内均环生一圈棕色绢毛,箨鞘背面中下部密被棕色小刺毛,近边缘处常具数条黄白色纵条纹,箨舌高约2 mm,边缘有锯齿,先端下凹,末级枝具7-16枚叶片,具有宽三角形的叶耳和1~5 mm长的鞘口繸毛。

Dendrocalamus pulverulentoides N.H.Xia,J.B.Ni,Y.H.Tong&Z.Y.Niu,a new species from Danxia Mountain,Guangdong,China,is described and illustrated.The new species is morphologically similar to D.latiflorus,D.minor and D.pulverulentus,but differs in having a ring of brown sericeous hairs at the infranodal to intranodal regions,culm leaf sheaths with dense appressed brown setae at the middle and lower parts of the abaxial surface and several yellowish white vertical stripes near the margins,ca 2 mm tall culm sheath ligules with a concave and serrulate margin,and 7-16 foliage leaves per ultimate branch with broadly triangular auricles and 1-5 mm long oral setae.