Homotypic Synonyms See Note

Basionym Name:
Lecanora polytropa var. orbicularis Schaer., Enum. critic. lich. europ. (Bern): 81 (1850)

Homotypic synonyms:
Lecanora orbicularis (Schaer.) Vain., Term. Füz. 22: 286 (1899)
Placodium orbiculare (Schaer.) Arnold, Flora, Regensburg 67: 334 (1884)
Placolecanora orbicularis (Schaer.) Kopach., in Kopaczevskaja et al., Opredelitel' Lishaĭnikov SSSR Vypusk (Handbook ol the lichens of the U.S.S.R.) (Leningrad) 1: 226 (1971)
Placolecanora orbicularis (Schaer.) Kopach., Nov. sist. Niz. Rast. 9: 293 (1972)
Protoparmeliopsis orbicularis (Schaer.) S.Y. Kondr., in Kondratyuk, Zarei-Darki & Khajeddin, Ukr. Bot. J. 69(6): 877 (2012)