Basionym Name:Agaricus geniculatus V. Brig., in Briganti & Briganti, Hist. fung. Neapol. (Neapoli): 72, tab. 35 (1837)
Homotypic synonyms:Fungus geniculatus (V. Brig.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 480 (1898)