Basionym Name:Agaricus stipatus ß hydrophilus Fr., Syst. mycol. (Lundae) 1: 296 (1821)
Homotypic synonyms:Psilocybe hydrophila (Fr.) Sacc., [as 'hygrophila'] Syll. fung. (Abellini) 5: 1053 (1887)Psilocybe spadicea var. hydrophila (Fr.) P. Karst., [as 'hygrophila'] Bidr. Känn. Finl. Nat. Folk 32: 506 (1879)