Psilocybe semilanceata (Fr.) P. Kumm.
Der Führer in die Pilzkunde: 71. 1871.
Common Name: none
See description from Guzmán 1983.
Solitary to scattered to gregarious in grassy areas; common on the far north coast, rare south; fall through winter.
Hallucinogenic.
Psilocybe semilanceata can be distinguished by its conical cap, purple-brown mature gills, slender stipe that stains blue when handled, and occurrence in grasslands.
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