Basionym Name:Placodium diducendum Vain., Acta Soc. Fauna Flora fenn. 7(no. 1): 124 (1890)
Homotypic synonyms:Caloplaca diducenda (Vain.) Zahlbr., Cat. Lich. Univers. 7: 113 (1930)Lecidea diducenda (Vain.) Hue, Nouv. Arch. Mus. Hist. Nat., Paris, 5 sér. 4: 12 (1914)