Abstract: A new species of the genus Indocalamus (Gramineae) from South Yunnan, China, I. jinpingensis Yi & J. Y. Shi, is described and illustrated. The new species is similar to I. victorialis Keng f. in habit, but differs by branch solitary at each node of culm, internodes solids or nearly solids, infranode densely covered with a ring of pale tomentum, not striped, intranode densely pale tomentose, culm-node very swollen on one side; culm-sheaths glabrous or sparsely brown adpressedly tuberculate hispidulous, pubescent at base; leaves 4–5 at ultimate branchlets, leaf-sheaths lossy when fresh, violet near apex, blades with 9–12 lateral veins on each side.

Key words: Indocalamus, Indocalamus jinpingensis Yi & J. Y. Shi, Gramineae, new species, Yunnan, China.