A taxonomic revision of Gymnanthere R. Br. (Asclepiadaceae: Perplocoideae) in Australia

The genus Gymnanthera R. Br. is revised for Australia. Two species are recognised and the relationship between them discussed. G. nitida R. Br. is widely distributed in coastal areas of tropical Australia and Malesia. G. cunninghamii comb. nov. (Wrightia cunninghamii Benth.) has a disjunct distribution in arid central Australia. A lectotype for G. nitida R. Br. is designated and G. fruticosa K. L. Wilson is placed in the synonymy of G. cunninghamii.