Basionym Name:Arthonia ruderella Nyl., Flora, Regensburg 64(34): 535 (1881)
Homotypic synonyms:Allarthonia lapidicola var. ruderella (Nyl.) B. de Lesd., Recherch. Lich. Dunkerque: 231 (1910)Allarthonia ruderella (Nyl.) Szatala, Folia Cryptog., Szeged 1(no. 7): 840 (1930)Arthonia lapidicola var. ruderella (Nyl.) Boistel, Nouv. Fl. Lich. (Paris) 2: 257 (1903)