Ric. Auton. Lich. Crost. (Verona): 86 (1852) subsp. canescens.
Basionym: Lichen canescens Dicks., Fasc. Pl. Crypt. Brit. (London) 1: 10 (1785).
Distribution Database: Discover Life
Picture Database: Tropical Lichens
Molecular Database: Genbank
Synonym Database: Index Fungorum
Synonym Database: Mycobank