Basionym:
Dasyscyphus lacteus Sacc., Syll. Fung. 12: 175 (1889) [MB#193825]
Obligate synonyms:
- Helotium lacteum Ellis & Everh., J. Mycol. 4 (6): 56 (1888) [MB#219841]
- Belonioscypha lactea (Sacc.) Seaver, The North American Cup-fungi (Inoperculates): 177 (1951) [MB#293644]
- Hymenoscyphus ellisii Dennis, Persoonia 3 (1): 48 (1964) [MB#332338]
- Bisporella lactea (Sacc.) Stadelman, Nova Hedwigia 30: 830 (1979) [MB#309572]
- Helotiella lactea (Sacc.) Sacc., Syll. Fung. 11: 415 (1895) [MB#242042]
- Atractobolus lacteus (Sacc.) Kuntze, Revisio generum plantarum 3 (3): 446 (1898) [MB#523367]
Taxonomic synonyms:
- Helotium lacteum Cooke, Grevillea 8 (46): 63 (1879) [MB#219753]
- Pezizella lactea (Cooke) Sacc., Syll. Fung. 8: 280 (1889) [MB#205684]
- Hymenoscyphus lacteus (Cooke) Kuntze, Revisio generum plantarum 3 (3): 485 (1898) [MB#526716]