Abstract: A new species of the genus Dendrocalamus Nees of Bambusoideae from China,D.longiauritus S.H.Chen,K.F.Huang et R.S.Chen,found in the Xiamen Botanical Garden,Fujian Province,is described and illustrated here.The new species is similar to D.minor (McClure) Chia et H.L.Fung,but differs by having one dominant branchlet at some nodes,culm-sheath auricle that is larger and distinct,long and narrow,connected with the base of the culm-sheath blade,regularly fold shape,wavilness oral setae 6-8 mm,sheath ligule 0.7-0.9 cm high,irregularly tearing shape,with gray-yellow flat long ciliates on the upside.