Conocybe cyanopus

Conocybe cyanopus
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Mycological characteristics
gills on hymenium

cap is conical

or convex
hymenium is adnate
stipe is bare
spore print is brown
ecology is saprotrophic
edibility: psychoactive

Conocybe cyanopus is a member of the genus Conocybe that contains the psychoactive compound psilocybin.[2] Originally described as Galerula cyanopus by American mycologist George Francis Atkinson in 1918, it was transferred to Conocybe by Robert Kühner in 1950.


Conocybe 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 x 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.[3]

Distribution and habitat[edit]

Conocybe cyanopus grows in lawns, fields, grassy areas, but is rare.

It is known to occur in cool climates of North America and Europe, but is probably more widely distributed. It can be found in British Columbia,[4] Colorado, New York, Oregon, Washington),[4] Finland, Germany and Norway.[4]


Hallucinogenic, containing psilocin, psilocybin, and baeocystin. This mushroom contains between 0.5 to 1.0 percent psilocybin. Most mycologists recommend against eating this mushroom because it is easy to mistake for poisonous species.


Fruit bodies have been found to contain anywhere from 0.33–1.01% psilocybin, 0–0.007% psilocin, and 0.12–0.20% baeocystin.[5]

See also[edit]


  1. ^ "Synonymy: Conocybe cyanopus (G.F. Atk.) Kühner". Species Fungorum. CAB International. Retrieved 2014-01-18. 
  2. ^ Ammirati, Joseph (1986), "Poisonous mushrooms of the northern United States and Canada",, ISBN 978-0-8166-1407-3, retrieved 1 September 2011 
  3. ^ Psilocybin Mushrooms of the World -- An Identification Guide, Paul Stamets, 1996. ISBN 0-89815-839-7 p.24
  4. ^ a b c Guzmán G, Allen JW, Gartz J. (1998). "A Worldwide geographical Distribution of the neurotropic fungi, an analysis and discussion". Ann. Mus. civ. Rovereto Sez. 14: 189–280. Referred to in the paper as Gymnopilus spectabilis]
  5. ^ Stamets (1996), p. 177.
  • Stamets, Paul. (1996). Psilocybin Mushrooms of the World. Berkeley, CA: Ten Speed Press. ISBN 0-89815-839-7
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