Contr. U.S. National Herb. 34: 513 (1968).
Basionym: Platysma collatum f. nudum Hue, Nouv. Arch. Mus. Hist. Nat., Paris, 4 Sér. 1: 208 (1899).
Distribution Database: Discover Life
Picture Database: Tropical Lichens
Molecular Database: Genbank
Synonym Database: Index Fungorum
Synonym Database: Mycobank