Whenever asking for mushroom identification always list the following criteria.
Habitat:
Where does it grow? Eg. woods, pasture, state, province, country, altitude, etc. What does it grow on? Eg. soil, dung, wood (dead, living, what kind of wood?), etc.
Gills:
Color, attached/not, gills/pores, etc.
Stem:
Length, diameter, color, texture, hollow/solid, thin/thick, etc.
Cap:
Diameter, color, texture, conical/spherical, convex/concave, etc.
Spore print color:
Very important!
Bruising:
Color that the mushroom bruises, if any.
Other information:
Scent of the mushroom, anything else you think is important, large close-up pictures showing stem, cap and gills.