psilocybin mushroom

Psilocybe semilanceata

Psilocybin mushroom is a type of hallucinogenic mushroom and a polyphyletic informal group of fungi that contain the prodrug psilocybin, which is metabolised into the psychedelic compound psilocin following ingestion. Rather than referring to one single mushroom species, the term "psilocybin mushroom" refers to a broad group of fungi found across several genera. Other compounds such as baeocystin, norbaeocystin, aeruginascin, and β-carbolines may modulate effects. The most potent species are members of genus Psilocybe, such as P. azurescens, P. semilanceata, and P. cyanescens, but psilocybin has also been isolated from approximately a dozen other genera, including Panaeolus (including Copelandia), Inocybe, Pluteus, Gymnopilus, and Pholiotina.