Basionym Name:Lecanora crassescens Nyl., Flora, Regensburg 58(7): 104 (1875)
Homotypic synonyms:Lecanora confragosa subsp. crassescens (Nyl.) Vain., Meddn Soc. Fauna Flora fenn. 3: 103 (1878)Lecanora confragosa var. crassescens (Nyl.) Harm., Bull. Soc. bot. Fr. 56(2): 84 (1909)Rinodina crassescens (Nyl.) Arnold, Flora, Regensburg 67: 318 (1884)