Basionym Name:Opegrapha pulverulenta var. fraxinea Ach., Methodus, Sectio prior (Stockholmiæ): 28 (1803)
Homotypic synonyms:Graphis fraxinea (Ach.) Röhl., Deutschl. Fl. (Frankfurt) 3(2): 56 (1813)Graphis pulverulenta var. fraxinea (Ach.) Ach., K. Vetensk-Acad. Nya Handl. 30(3): 146 (1809)Graphis scripta a fraxinea (Ach.) Stein, in Cohn, Krypt.-Fl. Schlesien (Breslau) 2(2): 273 (1879)Graphis scripta f. fraxinea (Ach.) Ach., Syn. meth. lich. (Lund): 82 (1814)Graphis scripta var. fraxinea (Ach.) Arnold, Flora, Regensburg 64: 140 (1881)