Gymnopilus braendlei

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Gymnopilus braendlei
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Cortinariaceae
Genus: Gymnopilus
Species: G. braendlei
Binomial name
Gymnopilus braendlei
(Peck) Singer (1951)

Flammula braendlei Peck (1904)

Gymnopilus braendlei
Mycological characteristics
gills on hymenium
32px cap is convex
32px 32px

hymenium is adnexed

or adnate
32px spore print is yellow-orange
32px ecology is saprotrophic
32px edibility: psychoactive

Gymnopilus braendlei is a species of agaric fungus that contains the hallucinogens psilocybin and psilocin.[2] It was originally collected by mycologist Charles Horton Peck as Flammula braendlei in the District of Columbia near Washington (1902).


  • Pileus: 2.5 – 5 cm, hemispheric becoming convex, sometimes slightly umbilicate, hygrophanous, purplish when young then pinkish and lighter towards the margin, becoming yellowish in age with greenish stains, fibrillose, sometimes squamulose toward the center, flesh whitish, thin, staining greenish.
  • Gills: Adnate, sometimes slightly sinuate in attachment, broad, close, whitish when young, becoming bright orangish brown to mustard yellow, becoming bright orangish brown in age.
  • Spore Print: Orangish brown.
  • Stipe: 2.5 – 4 cm x 3 – 4 cm thick, more or less equal, pallid, sometimes yellowish at the base, fibrillose above, stuffed or hollow, veil fibrillose, sometimes leaving a silky zone but not forming an annulus.
  • Taste: Bitter
  • Microscopic features: Spores 6 x 8.5 x 4.5 — 5 µm ellipsoid to ovoid in face view, dextrinoid, verruculose, no germ pore. Pleurocystidia 22— 33 x 6— 7 µm, cheilocystidia 20 — 34 x 3 — 7 µm, caulocystidia none, clamp connections present.

Habitat and distribution

Gymnopilus braendlei is found growing solitary or cespitose on tree stumps, June - November. It is widespread in the eastern U.S.

See also


  • Peck CH. (1904). New species of fungi. Bulletin of the Torrey Botanical Club 31(4): 177-182.
  • Hesler, L. R. (1969). North American species of Gymnopilus. New York: Hafner. 117 pp.
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