Basionym Name:Arthothelium ilicinum var. dictyosporum Coppins & P. James, Lichenologist 11(1): 27 (1979)
Homotypic synonyms:Arthonia dictyospora (Coppins & P. James) McCune, Microlichens of the Pacific Northwest, Volume 2: Keys to the Species: 31 (2017)Arthothelium dictyosporum (Coppins & P. James) Coppins, Lichenologist 21(3): 210 (1989)