Psilocybe coprophila (Dung-loving Psilocybe)

Description: Sticky, brownish cap with brown gills and yellowish-brown stalk.

Cap: 1-3 cm wide; convex to broadly convex or flat; margin with whitish patches at first; smooth, dark reddish-brown, fading to grayish-brown.

Gills: attached, nearly distant, broad; whitish to brown or purplish-brown.

Stalk: 2-4 cm long, 1.5-5mm thick; whitish, darkening to brown, but not bruising blue.

Veil (when present): partial veil evanescent.

Spores: 11-14 X7-8.5 m; elliptical, smooth, with pore at tip. spore print purplish-brown.

Edibility: Hallucinogenic. [Note: According to Stamets and other sources (e.g., Fungi of Southern Australia) , P. coprophila is not hallucinogenic]

Season: June-October

Habitat Single to numerous, on horse or cow dung.

Range: Widely distributed in North America.

Look-alikes: P. merdaria has central ring zone on stalk. Stropharia semiglobata is ringed yellowish. Panaeolus species have blackspores. Coprinus species liquefy.

Comments: This weak hallucinogen is the most widespread psilocybe in North America.

Image and excerpt from Gary H. Lincoff's National Audubon Society Field Guide to North American Mushrooms, (1981, 2004, pp. 720-721).

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Dung Loving Psilocybe (Psilocybe coprophila).jpg