Basionym: Peziza amorpha Pers., Synopsis methodica fungorum: 657 (1801) [MB#248453] Obligate synonyms: - Thelephora amorpha (Pers.) Fr., Elenchus Fungorum 1: 183 (1828) [MB#440674] - Lachnea amorpha (Pers.) Gillet, Champignons de France. Les Discomycètes 4: 89 (1881) [MB#440055] - Cyphella amorpha (Pers.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 215 (1886) [MB#193077] - Corticium amorphum (Pers.) Fr., Epicrisis Systematis Mycologici: 599 (1838) [MB#186543] - Stereum amorphum (Pers.) Fuckel, Jahrbücher des Nassauischen Vereins für Naturkunde 15: 102 (1860) [MB#440456] - Terana amorpha (Pers.) Kuntze, Revisio generum plantarum 2: 872 (1891) [MB#440489] - Aleurodiscus amorphus (Pers.) Rabenh., Fungi Europaei exsiccati Cent. 19: no. 1824 (1874) [MB#840215] Taxonomic synonyms: Nodularia balsamicola Peck, Annual Report on the New York State Museum of Natural History 24: 96 (1872) [MB#239747]