Gymnopilus braendlei is a species of agaric fungus in the family Hymenogastraceae that contains the hallucinogens psilocybin and psilocin. It was originally described by mycologist Charles Horton Peck as Flammula braendlei, from specimens found in the District of Columbia in 1902.
Description
- Pileus: 2.5âÂÂ5 cm, hemispheric becoming convex, sometimes slightly , hygrophanous, purplish when young then pinkish and lighter towards the margin, becoming yellowish in age with greenish stains, fibrillose, sometimes 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: 2.5âÂÂ4 cm x 3âÂÂ4 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 4.5âÂÂ5 üm ellipsoid to ovoid in face view, dextrinoid, , no germ pore. 22âÂÂ33 x 6âÂÂ7 üm, cheilocystidia 20âÂÂ34 x 3âÂÂ7 üm, no caulocystidia, clamp connections present.
- Bruising: Green or blue bruising at the base or on the pileus, and green spots on pileus likely.
Distribution and habitat
Gymnopilus braendlei is found growing solitary or cespitose on tree stumps from June to November. It is widespread in the eastern U.S, and present in the western U.S.
See also
References
- Peck CH. (1904). New species of fungi. Bulletin of the Torrey Botanical Club 31(4): 177âÂÂ182.
- Hesler, L. R. (1969). North American species of Gymnopilus. New York: Hafner. 117 pp.