Basionym Name:Agaricus gracillimus Durieu & Lév., in Durieu, Expl. Sci. Alg., Fl. Algér. 1: tab. 31, fig. 2 (1846)
Homotypic synonyms:Mycena gracillima Sacc., Syll. fung. (Abellini) 5: 300 (1887)