Revised January 21, 2005; October 9, 2007; and April 16, 2013.
Copyright 1998-2013 by John W. Allen.

Psilocybe weilii Guzmán, Tapia & Stamets


Psilocybe weilii Guzmán, Tapia & Stamets. Photo: Jochen Gartz.


Cap: 2-6 cm broad. Campanulate to conic with protrude. margin is enrolled when young then becomes incurved and irregular with age, an expands to broadly convex to plane lifting up in age. Color is chestnut-brown to deep olivaceous-brown. Hygrophanous, fading to pallid brown to light brown. Flesh is white bruising bluish when damaged and with age. Surface viscid when moist from a separable gelatinous pellicle and is translucent-striate near the margin.
Gills: Adnate to sinuate with two tiers of intermediate gills. Close, even and broad becoming dark chocolate-brown with maturity.

Stem: 25-70mm long by 4-8 mm thick. Equal and swollen at the base. White to dingy brown, bruising blue where damaged or with age.

Spores: 5.5-6.5 by 4-5 µ. Basidia is 4-spored.

Sporeprint: purple-violet-brown spores.

Habitat: Gregarious to cepitose in red clay soils with pine needles of loblolly pine underneath sweet gum.

Distribution: Northern Georgia.

Season: September through November.

Dosage: One large mushroom or three to four small mushrooms.

Comment: Named in honor of Dr. Andrew Weil for his work in the field of Ethnobotanical and Ethnomycological Medicinal Plant Studies.

Psilocybe weilii Gallery

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