Basionym Name:Platygrapha nebulosa Stirt., Proc. Roy. phil. Soc. Glasgow 11: 104 (1879)
Homotypic synonyms:Arthonia nebulosa (Stirt.) Müll. Arg., Flora, Regensburg 66(22): 350 (1883)Arthoniopsis nebulosa (Stirt.) Zahlbr., Cat. Lich. Univers. 2: 141 (1922)