Homotypic Synonyms See Note

Basionym Name:
Callopisma aurantiacum var. diffractum A. Massal., Atti Inst. Veneto Sci. lett., ed Arti, Sér. 2 3(App. 3): 73 (1852)

Homotypic synonyms:
Callopisma aurantiacum f. diffractum (A. Massal.) Arnold, Flora, Regensburg 67(13): 252 (1884)
Caloplaca aurantiaca f. diffracta (A. Massal.) Lettau, Hedwigia 52(3-4): 236 (1912)
Caloplaca aurantiaca var. diffracta (A. Massal.) Riddle, in Britton & Millspaugh, The Bahama Flora (New York): 551 (1920)
Caloplaca erythrella var. diffracta (A. Massal.) H. Olivier, Mém. Soc. natn. Sci. nat. Cherbourg 37: 115 (1909)
Caloplaca placidia var. diffracta (A. Massal.) J. Steiner, Annln K. K. naturh. Hofmus. Wien 30: 218 (1916)
Caloplaca velana var. diffracta (A. Massal.) Verseghy, Stud. Bot. Hungar. 8: 57 (1973)
Placodium aurantiacum var. diffractum (A. Massal.) Anzi, Comm. Soc. crittog. Ital. 1(fasc. 3): 140 (1862)
Placodium placidium var. diffractum (A. Massal.) Szatala, Annls hist.-nat. Mus. natn. hung. 51: 142 (1959)