Panaeolus bisporaCopelandia bisporusCopelandia bispora Panaeolus bisporus, also known as Copelandia bisporus is a rare and widely distributed little brown mushroom that bruises blue and contains the psychedelic compound psilocybin.

It has been found in Hawaii, Southern California, North Africa, Spain and Switzerland.

The cap is 15-30 mm tan to gray fading to black sometimes when covered with spores and with a defined ring zone somewhat globe shaped or bell shaped to convex, hardly expanding, margin often torn and pedaled, smooth not viscid, and slightly wrinkled and pitted with age.

The gills are adnexed or narrowly attachedtightly packed, mottled gray to jet black, white edges.

It produces spores that are jet black, elliptical, 12-14 x 8-10 x 6-7.5 μm smooth and opaque, elongated with germ pore straight off the end.