Cephalomappa is a genus of plant of the family Euphorbiaceae first described as a genus in 1874. It is native to Malaysia, Borneo, and Sumatra.Species Cephalomappa beccariana Baill. - Sarawak Cephalomappa lepidotula Airy Shaw - Malaysia, Borneo, Sumatra Cephalomappa malloticarpa J.J.Sm. - Malaysia, Borneo, Sumatra Cephalomappa paludicola Airy Shaw - Sarawak Cephalomappa penangensis Ridl.