Basionym Name:Physcia tribacella Nyl., Flora, Regensburg 57: 307 (1874)
Homotypic synonyms:Parmelia lithotea f. tribacella (Nyl.) Arnold, Flora, Regensburg 67(13): 229 (1884)Parmelia obscura f. tribacella (Nyl.) Arnold, Flora, Regensburg 67(13): 229 (1884)Physcia adglutinata var. tribacella (Nyl.) H. Olivier, Rev. Bot. 12: 91 (1894)Physcia obscura var. tribacella (Nyl.) Boistel, Nouv. Fl. Lich. (Paris) 2: 76 (1903)