How to identify it?
Cap
Cap 1-5 cm across, convex to plano-convex; chestnut or orange brown to yellowish brown; surface hygrophanous, smooth; turns blackish-blue when handled roughly. Flesh thick, soft. Odour and taste not distinctive.
Gills
Gills adnexed to adnate, whitish to brown, rusty brown, close.

Scientific Classification

Phylum
Club fungi Class
Mushroom-forming fungi Order
Gilled fungi Family
Hymenogastraceae Genus
Psilocybe Species
Psilocybe Ovoid