Taxonomic and Nomenclatural notes on Biophytum madurense, B. intermedium and B. intermedium var. pulneyense (Oxalidaceae) from South India

While revising the family Oxalidaceae for the Western Ghats (SW India), missing typification and nomenclatural issues about several species of Biophytum were noticed. In this contribution, Biophytum intermedium var. pulneyense is reduced to a synonym of B. madurense and neotypes for the names B. madurense and B. intermedium are designated. A brief description, photographs, and taxonomic note on these species are provided to facilitate their identification.