How to identify it?
Cap
Cap 1.5-5.5 cm across, convex; dull reddish-tan, dark brown to almost black when wet; surface smooth. Flesh thin, cinnamon brown to cream. Taste salty.
Gills
Gills adnexed, beige and mottled, then soot to black, crowded.

Scientific Classification

Phylum
Club fungi Class
Mushroom-forming fungi Order
Gilled fungi Genus
Panaeolus Species
Banded mottlegill