Homotypic Synonyms See Note

Basionym Name:
Sphaeria gregaria Weigel, Observ. Bot.: 43 (1772)

Homotypic synonyms:
Arthonia cinnabarina f. gregaria (Weigel) Malbr., Bull. Soc. Amis Sci. Nat. Rouen 5: 287 (1870)
Arthonia cinnabarina var. gregaria (Weigel) H. Olivier, Fl. Lich. Orne 2: 250 (1884)
Arthonia gregaria (Weigel) Körb., Syst. lich. germ. (Breslau): 291 (1855)
Coniocarpon gregarium (Weigel) Schaer., Naturwiss. Anzeiger Allgem. Schweizer. Gesellsch. Naturwiss. 5: 34 (1821)
Coniocarpon gregarium f. gregarium (Weigel) Schaer., Naturwiss. Anzeiger Allgem. Schweizer. Gesellsch. Naturwiss. 5: 34 (1821)
Coniocarpon gregarium var. gregarium (Weigel) Schaer., Naturwiss. Anzeiger Allgem. Schweizer. Gesellsch. Naturwiss. 5: 34 (1821)
Opegrapha gregaria (Weigel) M. Choisy, Bull. mens. Soc. linn. Lyon 19: 10 (1950)
Spiloma gregarium (Weigel) Hook., Engl. Fl., Mosses, Hepaticae, Lichens, Characeae and Algae (London) 5(1): 167 (1833)
Spiloma gregarium f. gregarium (Weigel) Hook., Engl. Fl., Mosses, Hepaticae, Lichens, Characeae and Algae (London) 5(1): 167 (1833)
Spiloma gregarium var. gregarium (Weigel) Hook., Engl. Fl., Mosses, Hepaticae, Lichens, Characeae and Algae (London) 5(1): 167 (1833)
Trachylia gregaria (Weigel) Vain., Bolm Soc. broteriana, Coimbra, sér. 2 6: 171 (1930)
Trachylia gregaria var. gregaria (Weigel) Vain., Bolm Soc. broteriana, Coimbra, sér. 2 6: 171 (1930)