Synonymy:
Lichen sanguinarius L. [as 'sanguinarium'], Sp. pl. 2: 1140 (1753)
Sphaeria sanguinaria (L.) Tode, Fung. mecklenb. sel. (Lüneburg) 2: 40 (1791)
Verrucaria sanguinaria (L.) Humb., Fl. Friberg. Spec. (Berlin): 52 (1793)
Lecidea sanguinaria (L.) Ach., Methodus qua omnes detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius: 39 (1803)
Patellaria parasema A sanguinarius (L.) Mérat, Nouv. Fl. Environs Paris, Edn 2 1: 170 (1821)
Patellaria sanguinaria (L.) Duby, Bot. Gall., Edn 2 (Paris) 2: 651 (1830)
Heterothecium sanguinarium (L.) Flot., Bot. Ztg. 8(18): 369 (1850)
Megalospora sanguinaria (L.) A. Massal., Ric. auton. lich. crost. (Verona): 106 (1852)
Oedemocarpus sanguinarius (L.) Trevis., Linnaea 28: 289 (1857) [1856]
Biatora sanguinaria (L.) Hepp, Flecht. Europ.: no. 483 (1860)

Lecidea didymospora Stirt., Trans. Glasgow Soc. Fld Nat. 1: 23 (1873)

Lecidea sanguinaria var. endorhoda Th. Fr., Lich. Scand. (Upsaliae)(2): 479 (1874)
Mycoblastus sanguinarius var. endorhodus (Th. Fr.) Stein, in Cohn, Krypt.-Fl. Schlesien (Breslau) 2(2): 256 (1879)
Heterothecium sanguinarium var. endorhodum (Th. Fr.) Eckfeldt [as 'endorhoda'], Bull. Torrey bot. Club 22(6): 254 (1895)

Mycoblastus sanguinarius f. leprosus Nádv., Stud. Bot. Čechoslov. 12(4): 244 (1951)

Mycoblastomyces sanguinarii Cif. & Tomas., Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(2): 267 (1954)

Position in classification:
Mycoblastus, Tephromelataceae, Lecanorales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
We aim to keep taxonomic opinions up to date, but errors or delays can occur. Please report them to our curator.