Montana Mushrooms

A friend sent this picture to me, and wondered what it was. Does anyone know what it is? Clue #1 :  Grows on the ground Clue #2: A little puff of white dust (spores) that looks like smoke comes out when disturbed.

We found this mushroom last fall while stumbling around the forest looking for edibles. Does anyone out there know what this mushroom is?

Mushrooms continue to fascinate me. This strange mushroom was growing in Bozeman, MT along a busy downtown sidewalk. Does anyone out there know what it is? Comments? Don’t be bashful!