Beih. Nova Hedwigia 7: 54 (1963). Basionym: Parmelia phaea Tuck., in Darlington, Fl. Cestrica, Edn 3: 440 (1853). Type locality: USA, Pennsylvania, Philadelphia.
Basionym: Parmelia phaea Tuck., in Darlington, Fl. Cestrica, Edn 3: 440 (1853).
Type locality: USA, Pennsylvania, Philadelphia.