Cephalomappa is a genus of flowering plants in the family Euphorbiaceae first described as a genus in 1874.Baillon, Henri Ernest. 1874. Adansonia 11: 130-132. descriptions in Latin, commentary in FrenchTropicosKew World Checklist of Selected Plant FamiliesGovaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew. It includes six species native to western Malesia (Borneo, Peninsular Malaysia, and Sumatra), Vietnam, and southern China.

Species Six species are accepted. Cephalomappa beccariana Baill. – Borneo (Sarawak) Cephalomappa lepidotula Airy Shaw – Malaysia, Borneo, Sumatra Cephalomappa malloticarpa J.J.Sm. – Malaysia, Borneo, Sumatra Cephalomappa paludicola Airy Shaw – Sarawak Cephalomappa penangensis Ridl. – Peninsular Malaysia Cephalomappa sinensis (Chun & F.C.How) Kosterm. – southern China and Vietnam

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