Synonymy:
Acolium Trevis., Flora, Regensburg 45(1): 4 (1862)
Arongylium Link, Mag. Gesell. naturf. Freunde, Berlin 3(1-2): 24 (1809)
Caliciella Vain., Acta Soc. Fauna Flora fenn. 57(no. 1): 52 (1927)
Caliciomyces E.A. Thomas ex Cif. & Tomas., Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(1): 67 (1953)
Calicium subdiv. Phacotium Ach., Methodus qua omnes detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius: 88 (1803)
Calicium subdiv. Strongylium Ach., Methodus qua omnes detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius: 97 (1803)
Crateridium Trevis., Flora, Regensburg 45(1): 3 (1862)
Cyphelium Ach., K. Vetensk-Acad. Nya Handl. 3: 261 (1815)
Cyphelium De Not., G. bot. ital. 2(1.1): 316 (1846)
Descematia Nieuwl., Am. Midl. Nat. 4: 385 (1916)
Embolidium Sacc., Michelia 1(no. 4): 418 (1878)
Mucor P. Micheli ex L., Sp. pl. 2: 1185 (1753)
Mycacolium Reinke, (1895)
Phacotium (Ach.) Trevis., Nat. Arr. Brit. Pl. (London) 1: 482 (1821)
Phacotrum Gray, Nat. Arr. Brit. Pl. (London) 1: 482 (1821)
Pseudacoliomyces Cif. & Tomas., Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(1): 65 (1953)
Pseudacolium Clem., Gen. fung. (Minneapolis): 71 (1909)
Sphaerocephalum F.H. Wigg., Prim. fl. holsat. (Kiliae): 87 (1780)
Stenocybella Vain., Acta Soc. Fauna Flora fenn. 57(no. 1): 62 (1927)
Stilbites Pia, Handbuch der Paläobotanik (Berlin) 1: 124 (1927)
Strongylium (Ach.) Gray, Nat. Arr. Brit. Pl. (London) 1: 485 (1821)
Vainionia Räsänen, (1943)

Position in classification:
Calicium, Caliciaceae, Caliciales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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