Basionym Name:Placodium spraguei Tuck., Syn. N. Amer. Lich. (Boston) 1: 179 (1882)
Homotypic synonyms:Candelariella spraguei (Tuck.) Zahlbr., Cat. Lich. Univers. 5: 802 (1928)Lecanora spraguei (Tuck.) Tuck., in Nylander, Lich. Japon.: 105 (1890)