Nat. Arr. Brit. Pl. (London) 1: 445 (1821).
Basionym: Lichen hypnorum Vahl, Icon. Plant. Dan. 6, 16: 8 (1787).
Distribution Database: Discover Life
Picture Database: Tropical Lichens
Molecular Database: Genbank
Synonym Database: Index Fungorum
Synonym Database: Mycobank