Gymnopilus viridans is a mushroom in the family Hymenogastraceae. It contains the hallucinogens psilocybin and psilocin. It is a rarely documented species, the last known collection being from the US state of Washington in 1912.
Description
- Pileus: â 8 cm, thick, convex with a large umbo, ochraceous, dry, with conspicuous light reddish brown scales that are sparse but become denser toward the center; flesh firm, becoming green-spotted where handled.
- Gills: Adnate, broad, crowded, edges undulate, dingy brown to rusty brown with age.
- Spore print: Rusty brown.
- Stipe: â 6 cm in height, 2 cm in diameter, enlarging below, solid, firm, concolorous with the cap.
- Microscopic features: Spores 7 x 8.5 x 4 â 5 üm ellipsoid, not dextrinoid, minutely verruculose, obliquely pointed at one end, no germ pore. Pleurocystidia absent, Cheilocystidia 20 â 26 x 5 â 7 üm, caulocystidia 35 â 43 x 4 â 7 üm, clamp connections present.
Habitat and formation
Gymnopilus viridans is found growing cespitose on coniferous wood from June to November.
References
- ("For the benefit of those using Saccardo's nomenclature, the following new species in the above article are recombined, as follows: Gymnopilus viridans = Flammula viridans" p. 262)
- Hesler, Mycologia Memoir No. 3 1969, North American Species of Gymnopilus