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.
| Gymnopilus viridans | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Hymenogastraceae |
| Genus: | Gymnopilus |
| Species: | G. viridans
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| Binomial name | |
| Gymnopilus viridans (Murrill)
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| Synonyms | |
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Flammula viridans | |
Gymnopilus viridans | |
|---|---|
 | Gills on hymenium |
 | Cap is convex |
 | Hymenium is adnexed or adnate |
 | Spore print is yellow-orange |
 | Ecology is saprotrophic |
 | Edibility is psychoactive |
Description edit
- Pileus: — 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: — 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 — 5 µm ellipsoid, not dextrinoid, minutely verruculose, obliquely pointed at one end, no germ pore. Pleurocystidia absent, Cheilocystidia 20 — 26 x 5 — 7 µm, caulocystidia 35 — 43 x 4 — 7 µm, clamp connections present.
Habitat and formation edit
Gymnopilus viridans is found growing cespitose on coniferous wood from June to November.
References edit
- Murrill, William (1912). "Gymnopilus viridans". Mycologia. 4: 257. doi:10.2307/3753448. JSTOR 3753448. ("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