Basionym Name:Physcia obscura var. cycloselioides Vain., Acta Soc. Fauna Flora fenn. 7(no. 1): 45 (1890)
Homotypic synonyms:Physcia obscura f. cycloselioides (Vain.) Harm., Lich. Fr. 4: 644 (1910)Physcia orbicularis var. cycloselioides (Vain.) Sántha, Folia Cryptog., Szeged 1(no. 6): 541 (1928)