Basionym Name:Agaricus bullula V. Brig., in Briganti & Briganti, Hist. fung. Neapol. (Neapoli): 37, tab. 16, fig. 1-2 (1837)
Homotypic synonyms:Omphalia bullula (V. Brig.) Sacc., Syll. fung. (Abellini) 5: 334 (1887)