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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 lazoi Singer (this is a doubtful neurotropic species, considered first by Guzmán (1983) as a synonym of Psilocybe zapotecorum, but Singer, 1986, claimed that this is a non-bluing fungus independent of that of Guzmán, 1983]
The concentration of active psilocybin mushroom compounds varies from species to species but also from mushroom to mushroom within a given species, subspecies or variety. [49] The species Psilocybe azurescens contains the most psilocybin (up to 1.78%).
Guzmán increased his estimate of the number of psilocybin-containing Psilocybe to 144 species in a 2005 review. The majority of these are found in Mexico (53 species), with the remainder distributed in the United States and Canada (22), Europe (16), Asia (15), Africa (4), and Australia and associated islands (19). [162]
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]
List of Psilocybe species; List of psilocybin mushroom species; M. Magic truffle; P. ... Psilocybin decriminalization in the United States; Psilocybin mushroom; W ...
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 yungensis is a saprobic species, and contributes to the degradation of organic matter deposited in soils and nutrient cycling in forests where it grows. [13] It typically grows in clusters or groups on rotting wood (rarely on humus ); it is less frequently found growing solitarily.