Basionym Name:Placodium atroalbum Tuck., Proc. Amer. Acad. Arts & Sci. 12: 172 (1877)
Homotypic synonyms:Caloplaca atroalba (Tuck.) Zahlbr., Cat. Lich. Univers. 7: 68 (1930)Pyrenodesmia atroalba (Tuck.) I.V. Frolov & Vondrák, in Frolov, Vondrák, Košnar & Arup, Journal of Systematics and Evolution 59(3): 470 (2020)