Revision of small ephemeral species of Eriocaulon (Eriocaulaceae) in West Africa with long involucral bracts

Summary The eight species of small ephemeral Eriocaulon known from West Africa with long involucral bracts are described and discussed. Three new species are included: E. cryptocephalum from Guinea (Conakry) and Sierra Leone, E. tingilomum from Sierra Leone and Ivory Coast and E. porembskii from Ivory Coast to Nigeria. A determination key to the eight included species is provided.