Homotypic Synonyms See Note

Basionym Name:
Peziza difformis Fr., Syst. mycol. (Lundae) 2(1): 151 (1822)

Homotypic synonyms:
Biatora difformis (Fr.) Willey, in Tuckerman, Syn. N. Amer. Lich. (Boston) 2: 130 (1888)
Biatorella difformis (Fr.) Vain., Meddn Soc. Fauna Flora fenn. 10: 143 (1883)
Biatorella difformis var. difformis (Fr.) Vain., Meddn Soc. Fauna Flora fenn. 10: 143 (1883)
Biatorina difformis (Fr.) Kirschst., Annls mycol. 36(5/6): 378 (1938)
Patellaria difformis (Fr.) Schwein., Trans. Am. phil. Soc., New Series 4(2): 236 (1832)
Sarea difformis (Fr.) Fr., Elench. fung. (Greifswald) 2: 14 (1828)
Tromera difformis (Fr.) Arnold, Flora, Regensburg 57: 85 (1874)