Homotypic Synonyms See Note

Basionym Name:
Lecidea geographica var. pulverulenta Schaer., Lich. helv. spicil. 3: 124 (1828)

Homotypic synonyms:
Buellia geographica var. pulverulenta (Schaer.) H. Olivier, Fl. Lich. Orne 2: 225 (1884)
Lecidea geographica f. immunda (Schaer.) Harm., Bull. Séanc. Soc. Sci. Nancy, Sér. 2 33: 102 (1899)
Lecidea geographica f. pulverulenta (Schaer.) Fr., Lich. eur. reform. (Lund): 327 (1831)
Rhizocarpon atroflavescens subsp. pulverulentum (Schaer.) Runemark, Op. bot. Soc. bot. Lund 2(no. 1): 132 (1956)
Rhizocarpon geographicum * pulverulentum (Schaer.) Körb., Syst. lich. germ. (Breslau): 263 (1855)
Rhizocarpon geographicum b immundum (Schaer.) Stein, in Cohn, Krypt.-Fl. Schlesien (Breslau) 2(2): 227 (1879)
Rhizocarpon geographicum f. immundum (Schaer.) Zahlbr., Cat. Lich. Univers. 4: 368 (1926)
Rhizocarpon geographicum f. pulverulentum (Schaer.) Rabenh., Krypt.-Fl. Sachsen, Abth. 2 (Breslau): 163 (1870)
Rhizocarpon geographicum var. pulverulentum (Schaer.) A. Massal., Nuovi Ann. Sci. nat. Bologna, Ser. 3 7: 220 (1853)
Rhizocarpon pulverulentum (Schaer.) Räsänen, Ann. bot. Soc. Zool.-Bot. fenn. Vanamo 16(Notul. Bot. 12): 59 (1942)