Homotypic Synonyms See Note

Basionym Name:
Arthonia spadicea Leight., Ann. Mag. nat. Hist., Ser. 2 13(no. 78): 442 (1854)

Homotypic synonyms:
Arthonia lurida var. spadicea (Leight.) Nyl., Mém. Soc. Imp. Sci. Nat. Cherbourg 4: 92 (1856)
Coniangium spadiceum (Leight.) Arnold, Verh. Kaiserl.-Königl. zool.-bot. Ges. Wien 23: 507 (1873)
Coniangium spadiceum var. spadiceum (Leight.) Arnold, Verh. Kaiserl.-Königl. zool.-bot. Ges. Wien 23: 507 (1873)
Coniocarpon spadiceum (Leight.) Arnold, Verh. Kaiserl.-Königl. zool.-bot. Ges. Wien 23: 507 (1873)
Diarthonis spadicea (Leight.) Frisch, Ertz, Coppins & P.F. Cannon, in Cannon, Ertz, Frisch, Aptroot, Chambers, Coppins, Sanderson, Simkin & Wolseley, Revisions of British and Irish Lichens 1: 44 (2020)
Opegrapha spadicea (Leight.) M. Choisy, Bull. mens. Soc. linn. Soc. Bot. Lyon 19(1): 10 (1950)