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Psilocybe quebecensis slideshow
Psilocybe quebecensis slideshow
Published: 2016/12/18
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Psilocybin-containing Magic Mushrooms - Paul Kroeger
Psilocybin-containing Magic Mushrooms - Paul Kroeger
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Psilocybe quebecensis - fungi kingdom
Psilocybe quebecensis - fungi kingdom
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P9290217
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Psilocybe caerulipes slideshow - blue foot
Psilocybe caerulipes slideshow - blue foot
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Psilocybe Cyanescens slideshow - wavy caps
Psilocybe Cyanescens slideshow - wavy caps
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Psilocybe ovoideocystidiata slideshow
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Psilocybe Cubensis outdoors slideshow
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Psilocybe mescaleroensis slideshow
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Psilocybe cyanofibrillosa slideshow
Psilocybe cyanofibrillosa slideshow
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SupaGro Magic Mushrooms Grow Kit video instructions
SupaGro Magic Mushrooms Grow Kit video instructions
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Psilocybe silvatica slideshow
Psilocybe silvatica slideshow
Published: 2016/12/18
Channel: Cap and Stem
Psilocybe baeocystis slideshow - bottle cap
Psilocybe baeocystis slideshow - bottle cap
Published: 2016/12/18
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Panaeolus cinctulus slideshow - banded mottlegill
Panaeolus cinctulus slideshow - banded mottlegill
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Psilocybe strictipes - fungi kingdom
Psilocybe strictipes - fungi kingdom
Published: 2015/01/25
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Panaeolus papilionaceus
Panaeolus papilionaceus
Published: 2017/06/09
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Pholiotina cyanopus - fungi kingdom
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Published: 2015/01/25
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On the Trail of Wild Psilocybin Mushrooms
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Gymnopilus aeruginosus slideshow - Magic Blue Gym
Gymnopilus aeruginosus slideshow - Magic Blue Gym
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Magic Mushrooms Quebec
Magic Mushrooms Quebec
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WIKIPEDIA ARTICLE

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Psilocybe quebecensis
Psilocybe quebecensis.jpg
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Strophariaceae
Genus: Psilocybe
Species: P. quebecensis
Binomial name
Psilocybe quebecensis
Ola'h & R. Heim 1967
Psilocybe quebecensis
View the Mycomorphbox template that generates the following list
Mycological characteristics
gills on hymenium

cap is convex

or conical

hymenium is adnate

or sinuate
stipe is bare
spore print is purple-brown
ecology is saprotrophic
edibility: psychoactive

Psilocybe quebecensis is a moderately active hallucinogenic mushroom in the section Aztecorum, having psilocybin and psilocin as main active compounds. Native to Quebec, it is the most northern known psilocybin mushroom.[1] Macroscopically this mushroom somewhat resembles Psilocybe baeocystis.

Etymology[edit]

Named for the province Quebec, where it was discovered.

Description[edit]

  • Cap: 1–3 cm (0.39–1.18 in) (3.5 cm or 1.38 in) in diameter. Nearly hemispheric to convex at first, becoming subcampanulate to more or less plane when mature, viscid and even to translucent-striate when moist, hygrophanous, brownish to straw colored, yellowish to milk white when dry. Surface smooth, may become finely wrinkled with age, flesh whitish. Readily stains blue-green where injured.
  • Gills: Adnate, thin, moderately broad to swollen in the middle. Grayish yellow with green tones becoming dark brown at maturity, with the edges remaining whitish.
  • Spore Print: Dark purplish brown.
  • Stipe: 2–3.5 cm (0.79–1.38 in) (4.5 cm or 1.77 in) long by 1–2 mm (0.039–0.079 in) (2.5 mm or 0.098 in) thick. Equal, slightly subbulbous, smooth to striate, brittle, tough, and fibrous, base is furnished with long conspicuous rhizomorphs. Yellowish or brownish towards the base, whitish when dry, partial veil cortinate, and soon disappearing, no annulus present, readily bruises blue.
  • Taste: Somewhat farinaceous
  • Odor: Farinaceous
  • Microscopic features: Spores ellipsoid to subovoid in side and face view some spores mango shaped, 8.8–11 µm (16 µm) × 6.6–7.7 µm (8.8 µm). Basidia 15–20 µm (28 µm) 4-spored. Pleurocystidia present, 12–25 µm (35 µm) × (3 µm) 5–10 µm (15 µm), relatively polymorphic, often fusiform-ventricose or ampullaceous. Cheilocystidia (18 µm) 22–36 µm × 5.5–8.8 µm (10 µm), fusoid-ampullaceous with an extended neck, 2–3.3 µm thick, abundant, forming a sterile band, sometimes with a hyaline viscous drop at the apex.

Habitat and formation[edit]

Solitary to gregarious, rarely cespitose, on rotting wood, particularly in the outwashes of streams in the decayed-wood substratum of alder, birch, fir and spruce in the late summer and fall. Reported from Quebec, Canada specifically in the Jacques-Cartier River Valley, fruiting at a temperature of 6 to 15 °C (43 to 59 °F) from summer to late October. Recently found in the United States (Michigan).

References[edit]

  1. ^ Oláh, G. M. (April 1973). "The fine structure of Psilocybe quebecensis" (PDF). Mycopathologia et Mycologia Applicata. 49 (4): 321–338. doi:10.1007/bf02050725. PMID 4122667. [...] the so far known most northern Geophila exhibiting psychodysleptic action.  closed access publication – behind paywall

Further reading[edit]

  • Stamets, Paul (1996). Psilocybin Mushrooms of the World. Berkeley: Ten Speed Press. ISBN 0-9610798-0-0. 
  • Guzman, 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].
  • Ola'h, Gyorgy Miklos & Heim, R. 1967. Une nouvelle espèce nord-américaine de Psilocybe hallucinogène: Psilocybe quebecensis. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences 264: 1601-1604.

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