Psilocybe stuntzii
| Psilocybe stuntzii' | |
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| Species: | P. stuntzii
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| Binomial name | |
| Psilocybe stuntzii | |
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Psilocybe pugetensis | |
Psilocybe stuntzii | |
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 | Gills on hymenium |
 | Cap is convex |
 | Hymenium is adnate or sinuate |
 | Stipe is bare |
 | Spore print is purple-brown |
 | Ecology is saprotrophic |
 | Edibility is psychoactive |
Psilocybe stuntzii, also known as "Stuntz's Blue legs" and "Blue Ringers" it is a psilocybin mushroom of the Agaricales family, having psilocybin and psilocin as main active compounds.
It is in the section Stuntzae, other members of the section include Psilocybe caeruleoannulata,Psilocybe meridionalis, Psilocybe mescaleroensis, Psilocybe ovoideocystidiata, Psilocybe rostrata, Psilocybe subaeruginascens, Psilocybe subaeruginascens var. septentrionbalis and Psilocybe uruguayensis.
Etymology and history
The mushroom is named in honor of mycologist Daniel Stuntz of the University of Washington. It was originally identified growing on the University of Washington campus. Also known as 'Psilocybe pugetensis'.
Description
- Pileus: 1.5 — 5 cm . Obtusely conic, expanding to convex-umbonate or flat with age. Margin is translucent-striate when moist and uplifted in age. Hygrophanous. Dark chestnut brown while lighter towards the center. Olive-greenish at times, fading to a pale yellowish brown or pale yellow. Viscid when moist from a gelatinous pellicle, staining slightly greenish-blue when injured or with age.
- Gills: Adnate or sinuate or adnexed, yellowish brown at first, soon violet brown or chocolate brown to blackish violet, uniform or somewhat mottled, with whitish edges.
- Spores: Dark violacous brown.(8.2)9.3 — 10.4(13.5) X 6 — 7.1(7.7) x 5.5 — 6.6 µm, subrhomboid in face view, subellipsoid in side view, with a hilar appendage visible and a truncate apex with a broad germ pore, thick walled, dingy yellow brown.
- Stipe: (2)3.5 — 6.5(7.5) cm x (1.5)2 — 4(6) mm, equal or slightly enlarged at the base, cylindric or subcylindric, twisted striate at times, flexuous, glabrous to slightly fibrillose, dry, stuffed with a pith and becoming hollow, white or whitish silky to ochraceous or brownish fibrillose. Partial veil thinly membranous, leaving a fragile annulus that becomes more persistent as it darkens with spores. Staining blue-green when injured.
- Taste: Farinaceous.
- Odor: Farinaceous.
- Microscopic features: Basidia 16.5 — 33 x 5.5 — 8.8 µm, 4-spored, hyaline, pleurocystidia absent, cheilocystidia 22 — 30 x 4.4 — 6.6 µm, abundant, forming a sterile band, hyaline, lageniform, fusiform-lanceolate or fusoid-ampullaceous, with an elongate and flexuous neck, 1 — 2.2 µm in diameter, sometimes irregularly branched. Clamp connections present.
Habitat and distribution
Psilocybe stuntzii is found growing gregarious to subcespitose in conifer wood chips and bark mulch, in soils rich in woody debris, and in new lawns of freshly laid sod or any newly mulched garden throughout the western region of the Pacific Northwest. From late July through December, has been observed growing all year long in the Seattle, Washington area, also reported from California, rarely as far south as Santa Cruz. There was a time when this mushroom appeared in over 40 percent of all new lawns and mulched in areas in the Puget Sound region of the Pacific Northwest. Due to a disappearance of pastures south of Seattle in the Tukwilla-Kent-Auburn areas, this mushroom now only appears sporadically in certain new lawns which are well fertilized and manicured.
References
- Mycologia 68(6): 1261 (1977)
- Stamets, Paul (1996). Psilocybin Mushrooms of the World. Berkeley: Ten Speed Press. ISBN 0-9610798-0-0.
- Guzmán, G. The Genus Psilocybe: A Systematic Revision of the Known Species Including the History, Distribution and Chemistry of the Hallucinogenic Species. Beihefte zur Nova Hedwigia Heft 74. J. Cramer, Vaduz, Germany (1983) [now out of print].
- Guzmán G, Ott J. (1976). Description and chemical analysis of a new species of hallucinogenic Psilocybe from the Pacific Northwest. Mycologia 68(6): 1261-1267.
