Conocybe cyanopus
| Pholiotina cyanopus | |
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| Pholiotina cyanopus | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Bolbitiaceae |
| Genus: | Pholiotina |
| Species: | P. cyanopus |
| Binomial name | |
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Pholiotina cyanopus (G.F.Atk.) Singer (1950) |
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| Approximate range of Conocybe cyanopus | |
| Synonyms | |
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| Pholiotina cyanopus | |
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| Mycological characteristics | |
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gills on hymenium |
 
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cap is conical or convex |
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hymenium is adnate |
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stipe is bare |
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spore print is brown |
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ecology is saprotrophic |
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edibility: psychoactive |
cap is conical
Pholiotina cyanopus is a species of fungus currently assigned to the genus Pholiotina that contains the psychoactive compound psilocybin. Originally described as Galerula cyanopus by American mycologist George Francis Atkinson in 1918. It was transferred to Conocybe by Robert Kühner in 1935 before being transferred to Pholiotina by Rolf Singer in 1950. A 2013 molecular phylogenetics study found it to belong to a group of species currently assigned to Pholiotina that are more closely related to Galerella nigeriensis than to Pholiotina or Conocybe. It is likely that it will be moved to a different genus in the future, but this has not happened yet.
It is very similar to Pholiotina smithii, a species known only from North America, from which it differs slightly in the color of its cap and gills and the width of its cheilocystidia. Some authors have speculated that the P. smithii could be a junior synonym of P. cyanopus, but this has not been confirmed.
Pholiotina cyanopus is a small saprotrophic mushroom with a conic to broadly cap which is smooth and colored ocher to cinnamon brown. It is usually less than 25 mm across and the margin is , often with fibrous remnants of the partial veil. The gills are 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.
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