Arisaema lushuiense sp. nov. (Araceae) from Gaoligong Mountains in Yunnan, China

Arisaema lushuiense G. W. Hu & H. Li, a new species of Araceae from Gaoligong Mountains in northwestern Yunnan, China, is described and illustrated. It is similar and closely related to A. auriculatum Buchet, but differs by its basically green spathe with semi-rotund to broadly ovate, 6-8 mm long auricles; the appendix of the spadix is 3.5-5.0 cm long and the apex of the appendix depressed with faint longitudinal ridges and grooves, slightly curved forward, with purplish black color, and exserted 1.0-1.5 cm from the spathe throat.