How to identify it?
Cap
Cap 1-3.5 cm across, cylindrical at first, but flat or with a slightly depressed center when expanded; buff, grayish white, tawny-brown at the center; surface smooth, becoming ridged or pleated. Flesh insubstantial, whitish. Odour and taste not distinctive.
Gills
Gills free, whitish, becoming dark gray and black in age, close or nearly distant.
Photo By User: Halved sandwich , used under CC-BY-SA-2.5 /Cropped and compressed from original
Scientific Classification
Phylum
Club fungi Class
Mushroom-forming fungi Order
Gilled fungi Family
Coprinaceae Genus
Parasola Species
Pleated inkcap