Basionym Name:Callopisma americana Malme, Ark. Bot. 20A(no. 9): 14 (1926)
Homotypic synonyms:Caloplaca americana (Malme) Zahlbr., Cat. Lich. Univers. 7: 64 (1930)Placodium americanum (Malme) Räsänen, Anal. Soc. cient. argent. 131: 103 (1941)