Synonymy:
Drosophila spadicea (P. Kumm.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 116 (1886)
Pratella spadicea (P. Kumm.) J. Schröt., in Cohn, Krypt.-Fl. Schlesien (Breslau) 3.1(33–40): 568 (1889)
Pilosace spadicea (P. Kumm.) Kuntze, Revis. gen. pl. (Leipzig) 3: 504 (1898)
Psathyra spadicea (P. Kumm.) Singer, Annls mycol. 34(4/5): 339 (1936)
Psathyrella spadicea (P. Kumm.) Singer, Lilloa 22: 468 (1951) [1949]

Agaricus spadiceus Schaeff., Fung. bavar. palat. nasc. (Ratisbonae) 4: 27 (1774)
Psilocybe spadicea P. Kumm., Führ. Pilzk. (Zerbst): 71 (1871)

Agaricus fuscescens Batsch, Elench. fung. (Halle): 77 (1783)

Agaricus sarcocephalus Fr., Observ. mycol. (Havniae) 1: 51 (1815)
Agaricus compactus var. sarcocephalus (Fr.) Fr., Systema Mycologicum 1: 290 (1821)
Psilocybe sarcocephala (Fr.) Gillet, Les Hyménomycètes ou Description de tous les Champignons (Fungi) qui Croissent en France avec l'indication de leurs propriétés utiles ou vénéneuses (Alençon): 586 (1878)
Drosophila sarcocephala (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 116 (1886)
Psathyra sarcocephala (Fr.) G. Bertrand, Bull. Soc. Mycol. France 17: 277 (1901)
Psathyrella sarcocephala (Fr.) Singer, Lilloa 22: 468 (1951) [1949]

Agaricus hygrophilus Pers., Mycologia Europaea (Erlanga) 3: 113 (1828)
Drosophila spadicea var. hygrophila (Pers.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 117 (1886)

Psilocybe sarcocephala var. cookei Sacc., Syll. Fung. (Abellini) 5: 1043 (1887)

Position in classification:
Homophron, Psathyrellaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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