Synonymy:
Byssiplaca A. Massal., Atti Inst. Veneto Sci. lett., ed Arti, Sér. 3 5: 252 (1860) [1859-1860]
Chlorangium Link, Bot. Ztg. 7: 731 (1849)
Circinaria M. Choisy, Bull. Soc. Bot. France 76: 523 (1929)
Dirinella M. Choisy, Bull. Soc. Bot. France 78: 455 (1931)
Lecanoromyces E.A. Thomas ex Cif. & Tomas., in Ciferri & Tomaselli, Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(1): 48, 74 (1953)
Magninia M. Choisy, Bull. Soc. Bot. France 76: 523 (1929)
Parmularia Nilson, Flecht. Sarekgebirg.: 34 (1907)
Placolecanora Räsänen, J. Jap. Bot. 16(2): 90 (1940)
Schistoplaca Brusse, Mycotaxon 29: [245] (1987)
Siegertia Körb., Parerga lichenol. (Breslau) 2: 180 (1860) [1865]
Sphaerothallia Nees ex Eversm., Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 15(2): 360 (1831)
Squamariomyces E.A. Thomas, Beitr. Kryptfl. Schweiz 9(no. 1): 182 (1939)
Verrucaria F.H. Wigg., Prim. fl. holsat. (Kiliae): 85 (1780)

Position in classification:
Lecanora, Lecanoraceae, Lecanorales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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