黎平玉山竹，贵州竹亚科一新种

Yushania lipingensis (Poaceae: Bambusoideae), A New Species from Guizhou, China

摘要:

描述了产自贵州的竹亚科一新种：黎平玉山竹（Yushania lipingensis Z.X.Zhang，Y.H.Tong & Z.Yang）。本种形态上与显耳玉山竹（Y.auctiaurita T.P.Yi）接近，但区别在于该种箨鞘背面密被向上的黄褐色或紫色疣基刺毛，箨耳及叶耳明显弯曲呈镰刀形，鞘口繸毛发达，通常呈放射状，箨舌先端截平，不圆拱，边缘密生短纤毛，箨片腹面被微柔毛，叶片次脉通常5~6对。

Abstract:

Yushania lipingensis (Poaceae:Bambusoideae), a new species from Guizhou, China, is described and illustrated. The new species is morphologically similar to Y. auctiaurita, but differs in its culm leaf sheath abaxially densely yellow-brown or purple antrorsely setose, both culm leaf auricles and foliage leaf auricles strongly curved falcate with well developed and usually radiating oral setae, culm leaf ligule with a truncate and densely ciliolate apex, culm leaf blades adaxially puberulent, and foliage leaf blades with 5-6 pairs of secondary veins.