Basionym: Ascomyces deformans Berk., Introduction to Cryptogamic Botany: 284 (1857) [MB#210308] Obligate synonyms: - Exoascus deformans (Berk.) Fuckel, Fungi Rhenani Exsiccati. Supplementi Fasc. 8: no. 2275 (1869) [MB#148213] - Ascosporium deformans (Berk.) Berk., Outlines of British Fungology: 449 (1860) [MB#214220] - Exoascus var. deformans (Berk.) Fuckel: 252 (1870) [MB#430803] Taxonomic synonyms: - Lalaria deformans R.T. Moore, Mycotaxon 38: 322 (1990) [MB#126973] - Exoascus amygdali Jacz. (1926) [MB#250662] - Taphrina amygdali (Jacz.) Mix: 156 (1936) [MB#250663]