Abstract
Raphiocarpus discolor, a new species from Guangdong Province, China, is described and illustrated. This species is morphologically similar to R. bicallosus C.H.Nguyen, Aver. & F.Wen but can be distinguished by several characteristics, including the absence of prophylls, all axes bearing white pubescence, the corolla tube being externally yellow to brownish yellow with several indistinct longitudinal yellowish-brown stripes, and internally purplish red to purplish brown and glabrous. According to the IUCN Red List criteria for endangered species, this new species has been provisionally recognized as Critically Endangered (CR).