Millettia weizhii (Fabaceae: Millettieae), a new species with four‐winged pods from a limestone area in Yunnan,China

Millettia weizhii sp. nov. (Fabaceae), a tree species bearing pods with 4 wings is described and illustrated from a limestone area in Yunnan, China. Fruiting specimens of the new species were previously identified as Millettia tetraptera Kurz, a species recorded from Myanmar and India (West Bengal), but examination of specimens and data from our field survey show that the new species is easily distinguished by having longer and stipitate pods, much shorter pseudoracemes with 2 flowers at each node, white and longer corolla, triangular calyx lobes and more and narrower leaflets. The new species should be placed in the Merrillii/Xylocarpa‐group of Millettia sect. Fragiliflorae Dunn based on morphological characters.