Basionym Name:Dermatocarpon fluviatile f. subconcavum Vain., Acta Soc. Fauna Flora fenn. 49(no. 2): 13 (1921)
Homotypic synonyms:Dermatocarpon decipiens f. subconcava (Vain.) Szatala, Folia Cryptog., Szeged 1(no. 5): 389 (1927)Dermatocarpon polyphyllum f. subconcavum (Vain.) Zahlbr., Cat. Lich. Univers. 8: 72 (1931)