Pluteus genus
Mushrooms in this genus grow from rotting wood, sometimes
buried, and are found spring, summer and fall. Gills are white,
becoming pinkish from the pink spores these mushrooms
produce. Gill are free, not attached to the stem. Some are very
common, like
Pluteus cervinus; others are somewhat rare, like
Pluteus aurantiorugosus.
See The Genus Pluteus at