Craterispermum parvifolium and C. robbrechtianum spp. nov. are described from the Lower Guinea Domain. Detailed descriptions and distribution maps are provided for each species, their conservation status is assessed and their taxonomic affinities are discussed. An identification key for the Craterispermum species of the Lower Guinea Domain is given. © 2011 The Authors. Nordic Journal of Botany © 2011 Nordic Society Oikos.