| Panaeolus bisporus | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Bolbitiaceae |
| Genus: | Panaeolus |
| Species: | P. bisporus
|
| Binomial name | |
| Panaeolus bisporus (Malencon and Bertault) Singer and Weeks
| |
| Synonyms | |
|
Panaeolus bispora | |
Panaeolus bisporus | |
|---|---|
 | Gills on hymenium |
 | Cap is convex |
 | Hymenium is adnexed |
 | Stipe is bare |
 | Spore print is black |
 | Ecology is saprotrophic |
 | Edibility is psychoactive |
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.
This mushroom is similar macroscopically to Panaeolus tropicalis, Panaeolus cambodginiensis and Panaeolus cyanescens, but can be differentiated using a microscope by its two spored basidia.