Revised February 24, 2006; October 8, 2007; April 6, 2013- March 9, 2017.
Copyright 1999-2013 John W. Allen.

Psilocybe cubensis


Psilocybe cubensis (Earle) Singer.

Cap: (15-) 25-70 (-85) mm in diameter, conic to convex, becoming campanulate to gradually expanding to plain. Color Copper in center to a light golden brown. Hygrophanous in drying, remnants of a veil and bluing in the edge of the cap when injured.

Gills: Adnate to adnexed to seceding. At first dark gray becoming deep violet gray to dark purplish brown. Sometimes mottled with whitish edges.

Stem: (40-) 70-120 (-170) X (4-) 8-13 (-16) mm. Equal, hollow, stem whitish to a creamy white or yellow brown when faded, easily staining blue where damaged. Fibrillose below the annulus.

Spores: (12-) 13.2-15.4 (-17.6) x 7.7-9.9 (-11) x 7-8.8.

Sporeprint: Chocolate to purple-brown.

Habitat: Gregarious, rarely solitary or scattered, common on cow and buffalo dung. Rarely on horse manure, although this species fruits well at home on horse manure and compost. Also in rich soil in pastures and meadows, along roadsides in manure heaps.

Distribution: Very common in subtropical regions, unknown in the tropics. Known in Texas to Florida in the south to the southeast and north from Florida to Georgia and South Carolina. Common in the tropics and subtropics and also in Cuba, Mexico, Guatemala, South America, Viet-Nam, Cambodia, Thailand, Burma, Malaysia, India, Fiji, Philippine Islands and Australia. Also either Psilocybe cubensis and/or Psilocybe subcubensis occurs in British Honduras.

Season: Fruiting in summer, but also in different seasons around the globe.

Dosage: 1 or 2 large mushrooms weighing approximately one fresh ounce or 10 to 40 mushrooms weighing same. 1 gram, considered an average dose, three to five grams dried, equivalent to an Indian dosage.

Comment: There are 245 images in this pictorial of Psilocybe cubensis and an equal amount of thumbnails. All images enlarge to 8 inches high. For more data on Psilocybe cubensis, please read:

The Ethnobotany of Psilocybian Mushrooms, Especialy Psilocybe cubensis - by Badham

Psilocybe cubensis and/or Psilocybe subcubensis
PDF Version


Naturally Occurring Psilocybe Cubensis 1987-2006
Thai Cubes May-August 2005 to August-Sept 2006
Bluing in Psilocybe cubensis
Dried specimens or in the process of drying

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