Basionym Name:Thalloidima spruceanum Müll. Arg., Hedwigia 32(2): 123 (1893)
Homotypic synonyms:Bacidia spruceana (Müll. Arg.) Swinscow & Krog, Lichenologist 13(3): 245 (1981)Psorella spruceana (Müll. Arg.) Zahlbr., Cat. Lich. Univers. 4: 403 (1926)