Pholiotina cyanopus

Pholiotina cyanopus is a small saprotrophic mushroom with a conic to broadly convex cap which is smooth and colored ocher to cinnamon brown. It is usually less than 25 mm across and the margin is striate, often with fibrous remnants of the partial veil. The gills are adnate and close, colored cinnamon brown with whitish edges near the margin, darkening in age. The spores are cinnamon brown, smooth and ellipsoid with a germ pore, measuring 8 × 5 micrometers. The stem is smooth and fragile, whitish at the bottom and brownish at the top, 2–4 cm long, 1 to 1.5 mm thick, and is equal width for most of the length, often swelling at the base. The stem lacks an annulus (ring) and the base usually stains blue. The cap color lightens when it dries, turning a tan color.

Like some other grassland species such as Psilocybe semilanceata, Psilocybe mexicana and Psilocybe tampanensis, Conocybe cyanopus may form sclerotia, a dormant form of the organism, which affords it some protection from wildfires and other natural disasters.[7]

Pholiotina cyanopus grows in lawns, fields, and grassy areas in temperate areas of North America, Europe and Asia.[8][9] It can be found in Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hungary, Latvia, the Netherlands, Norway, Poland, Russia, Sweden, Switzerland, Ukraine and the United States.[8][9][3] It has also been reported from the United Kingdom but these reports are doubtful.[3] Within Canada, it has been found in British Columbia and Quebec.[8][3] Within the United States, it has been found in Colorado, Michigan, New York, Oregon and Washington)[8][3] Within Russia, it has been found in the Sakha Republic and the Sikhote-Alin mountains and .[9][3] It is rare where it occurs.[8]

Pholiotina cyanopus is hallucinogenic, containing psilocin, psilocybin, baeocystin, norbaeocystin and aeruginascin.[3][10] Paul Stamets stated in 1996 that fruit bodies of P. cyanopus have been found to contain anywhere from 0.33 to 1.01% (of dry weight) psilocybin, 0–0.007% psilocin, and 0.12–0.20% baeocystin.[7] A more recent study found a collection of P. cyanopus from Poland to contain 0.90±0.08% psilocybin, 0.17±0.01% psilocin, 0.16±0.01% baeocystin, 0.053±0.004% norbaeocystin and 0.011±0.0007% aeruginascin.[3] Most mycologists recommend against eating this mushroom because it is easy to mistake with deadly poisonous species e.g. pholiotina rugosa, cortinarius gentilis, galerina marginata or galerina padulosa

The legal status of psilocybin mushrooms varies worldwide. Psilocybin and psilocin are listed as Class A (United Kingdom) or Schedule I (US) drugs under the United Nations 1971 Convention on Psychotropic Substances.[11] The possession and use of psilocybin mushrooms, including P. cyanopus, is therefore prohibited by extension. However, in many national, state, and provincial drug laws, there is a great deal of ambiguity about the legal status of psilocybin mushrooms and the spores of these mushrooms. For more details on the legal status of psilocybin mushrooms and their spores, see: Legal status of psilocybin mushrooms.

• Psilocybin mushrooms
• List of Psilocybin mushrooms