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Psilocybe azurescens is a species of psychedelic mushroom whose main active compounds are psilocybin and psilocin.It is among the most potent of the tryptamine-bearing mushrooms, containing up to 1.8% psilocybin, 0.5% psilocin, and 0.4% baeocystin by dry weight, averaging to about 1.1% psilocybin and 0.15% psilocin.
In 2007, a paper by Redhead et al. proposed conserving the genus Psilocybe with Psilocybe semilanceata as its type species. [5] The suggestion was accepted by unanimous vote of the Nomenclature Committee for Fungi of the International Botanical Congress in 2010, meaning that P. semilanceata (a member of the bluing clade) now serves as the type species of the genus. [6]
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.
Psilocybe septentrionalis (Guzmán) Guzmán (= Psilocybe subaeriginascens Höhn. var. septentrionalis Guzmán) Psilocybe serbica Moser & Horak (non ss. Krieglsteiner) Psilocybe sierrae Singer (= Psilocybe subfimetaria Guzmán & A.H. Sm.) Psilocybe silvatica (Peck) Singer & A.H. Sm. Psilocybe singeri Guzmán; Psilocybe strictipes Singer & A.H. Sm.
Psilocybe araucariicola P. S. Silva, likely psychoactive [1] Psilocybe aucklandiae Guzmán, C.C. King & Bandala, psychoactive; Psilocybe aztecorum R. Heim Psilocybe aztecorum var. bonetii (Guzman) Guzmán (a.k.a. Psilocybe bonetii Guzmán) Psilocybe azurescens Stamets & Gartz
Possession and use of psilocybin mushrooms, including the bluing species of Psilocybe, is therefore prohibited by extension. However, in many national, state, and provincial drug laws, there has been a great deal of ambiguity about the legal status of psilocybin mushrooms, as well as a strong element of selective enforcement in some places.
Psilocybe semilanceata, commonly known as the liberty cap, is a species of fungus which produces the psychoactive compounds psilocybin, psilocin and baeocystin. It is both one of the most widely distributed psilocybin mushrooms in nature, and one of the most potent .
Psilocybe aztecorum is a species of psilocybin mushroom in the family Hymenogastraceae.Known from central Mexico, Arizona, California, Oregon, Colorado, Canada, India and Costa Rica, the fungus grows on decomposing woody debris and is found in mountainous areas at elevations of 2,000 to 4,000 m (6,600 to 13,100 ft), typically in meadows or open, grassy conifer forests.