Panaeolus fimicola
Panaeolus fimicola is a widespread but seldom identified "little brown mushroom" which sometimes contains small amounts of the hallucinogen psilocybin. "Panaeolis ater" is a synonym. The species is also referred to as the "turf mottlegill". Habitat and formation. "Panaeolus fimicola" can be found growing solitary to scattered in soil or dung, fertilized lawns and other grassy places, late spring to mid-fall. It is widespread and common across the Americas, as well as Europe and Africa. It has also been found in Turkey. Panaeolus Fimicola will often appear during or after a cold rain.