Spore print "light-colored": white or buff, sometimes tinged with pink or tan. Greenish and (except for the Russulales) yellow spore prints also go here
Stalk fibrous, not fracturing like a piece of chalk
Stalk widening drastically towards the bottom, often until it is as wide as the cap Capconical when young, flat with a very broadumbo in maturity Gills strongly decurrent, often slanting diagonally from the margin to the stalk
Thus, the point where the gills meet the stalk is usually the thinnest part of the mushroom, and young mushrooms have sort of an hourglass-shaped profile
Here are the characters that distinguish this species from the others in its group. For its more general characters, see higher up on the page. If there's just a few words or a microscopic feature here, a more thorough description can be found above.