Basionym Name:Lichen spurcatus Ach., Lich. suec. prodr. (Linköping): 20 (1799)
Homotypic synonyms:Opegrapha notha var. spurcata (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 18 (1803)Opegrapha spurcata (Ach.) Röhl., Deutschl. Fl. (Frankfurt) 3(2): 54 (1813)Opegrapha varia f. spurcata (Ach.) Arnold, Flora, Regensburg 67(34): 657 (1884)Opegrapha varia var. spurcata (Ach.) Rabenh., Deutschl. Krypt.-Fl. (Leipzig) 2(1): 21 (1845)