Basionym Name:Bilimbia microdiscus Vain., Ann. Acad. Sci. fenn., Ser. A 15(no. 6): 79 (1921)
Homotypic synonyms:Bacidia microdiscus (Vain.) Zahlbr., Cat. Lich. Univers. 4: 126 (1926)Fellhanera microdiscus (Vain.) Vězda, Folia geobot. phytotax. 21(2): 214 (1986)