Inocybe tricolor is a rare member of the genus Inocybe that is widely distributed in temperate forests. It is a small mycorrhizal mushroom that contains the hallucinogens psilocybin and psilocin. Inocybe tricolor is found under Norway spruce in central Europe.
Description
Cap: Brick red to chocolate brown, lighter towards the margin, convex to umbonate, with a fibrillose to squamulose cap. Usually less than 4 cm across and has incurved margin until very mature.
Gills: adnate and very numerous, pale cream brown to yellowish tan.
Spores: Smooth and ellipsoid to oval, measuring 7.5 x 4.5 micrometres, ochre to tan brown.
Stipe: 2.5–6 cm long, 4 to 6 mm thick, and is equal width for the whole length, sometimes with some swelling at the base.
^Kühner R. (1955). "Compléments a la "Flore analytique" V. Inocybes léiosporés cystidiés. Espèces nouvelles ou critiques". Bulletin de la Société des Naturalistes d'Oyonnax (in French). 9 (Suppl): 3–95 (see p. 6).
Stamets, Paul (1996). Psilocybin Mushrooms of the World. Berkeley: Ten Speed Press. ISBN0-9610798-0-0.