Syst. Veg. 4, 1: 271 (1827). Basionym: Lichen ceratophyllus Sw., Prodr. 147 (1788). Type locality: Jamaica, O. P. Swartz s.n. (S-Sw - lectotype; BM, G, H-ACH 1576, S, UPS-Ach - isolectotype).
Basionym: Lichen ceratophyllus Sw., Prodr. 147 (1788).