Basionym Name:Lecanora microthallina Wedd., Mém. Soc. Imp. Sci. Nat. Cherbourg 19: 276 (1875)
Homotypic synonyms:Caloplaca microthallina (Wedd.) Zahlbr., Cat. Lich. Univers. 7: 247 (1931)Flavoplaca microthallina (Wedd.) Arup, Frödén & Søchting, Nordic Jl Bot. 31(1): 46 (2013)Physcia microthallina (Wedd.) Arnold, Flora, Regensburg 64(20): 309 (1881)Placodium microthallinum (Wedd.) H. Olivier, Expo. Syst. Descr. Lich. Ouest Fr. 1: 224 (1897)Placodium murorum var. microthallinum (Wedd.) Boistel, Nouv. Fl. Lich. (Paris) 2: 100 (1903)Placodium thallincolum var. microthallinum (Wedd.) H. Olivier, Mém. Soc. natn. Sci. nat. Cherbourg 37: 92 (1909)