Gymnopilus validipes

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Gymnopilus validipes
Gymnopilus validipes (Peck) Hesler 299026.jpg
Gymnopilus validipes
Scientific classification
G. validipes
Binomial name
Gymnopilus validipes

Cortinarius validipes Gymnopolis magna

Gymnopilus validipes
View the Mycomorphbox template that generates the following list
Mycological characteristics
gills on hymenium
cap is convex
hymenium is adnexed or adnate
stipe has a ring
spore print is yellow-orange
ecology is saprotrophic
edibility: psychoactive

Gymnopilus validipes is a widely distributed mushroom of North America and Europe. Gymnopilus validipes contains the hallucinogens psilocybin and psilocin. The mild taste of this mushroom stands in contrast to closely related bitter species. Validipes means "having a robust stalk." Gymnopilus validipes contains about 0.12% psilocybin.[1]


  • Pileus: (4)7.5 — 15(30) cm, Convex to broadly convex, margin deeply incurved at first, becoming revolute with age, dry, fibrillose or with small ochraceous brown scales, pale-yellow or ochraceous buff, flesh soft, whitish, yellowish near the gills.
  • Gills: Adnate to uncinate, close, thin, yellowish white becoming cinnamon.
  • Spore Print: Orangish brown.
  • Stipe: (7.5)10 — 13(25) cm. long, (1.5)2.5 – 5 cm. thick, equal or swelling in the middle, fleshy-fibrous, solid, elastic, fibrillose, concolorous, white within, the cortina leaves only a faint ring on the robust stalk.
  • Taste: Mild.
  • Odor: Pleasant.
  • Microscopic features: Spores (7.5)8 — 10 X 5 — 6, ellipsoid.

Habitat and formation[edit]

Gymnopilus validipes is found growing gregarious (in groups) to cespitose (in dense clumps) on tree stumps, hardwood logs and debris, widespread in the United States, common from the Great Lakes and eastward.

See also[edit]


  • Stamets, Paul (1996). Psilocybin Mushrooms of the World. Berkeley: Ten Speed Press. ISBN 0-9610798-0-0.
  • Hesler, L. R. (1969). North American species of Gymnopilus. New York: Hafner. 117 pp.

Media related to Gymnopilus validipes at Wikimedia Commons