Psilocybe quebecensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Hymenogastraceae
Genus: Psilocybe
P. quebecensis
Binomial name
Psilocybe quebecensis
Ola'h & R. Heim 1967
Psilocybe quebecensis
View the Mycomorphbox template that generates the following list
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 is 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 after Psilocybe semilanceata in northern Scandinavia.[1] Macroscopically this mushroom somewhat resembles Psilocybe baeocystis.


Named for the province Quebec, where it was discovered.


Habitat and formation

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). Originally discovered in 1966, P.Quebecensis has also been confirmed growing in at least one area within Cape Breton, NS.


  1. ^ Oláh, G. M. (April 1973). "The fine structure of Psilocybe quebecensis". Mycopathologia et Mycologia Applicata. 49 (4): 321–338. doi:10.1007/bf02050725. PMID 4122667. S2CID 6371933. [...] the so far known most northern Geophila exhibiting psychodysleptic action. Closed access icon

Further reading