Pluteus atricapillus        Fawn Pluteus

This is a good example of  the genus Pluteus.   You can see that the gills are not attached to the stalk and there is a little space forming a white circle between the stalk and the ends of the gills.  In this case, we describe  the gills as 'free'.   You will also notice the distinctive pinkish tint to the gills.  Pluteus species produce pinkish spore prints and as the spores mature the gills turn from white to pink.  So the older the fruitbody the pinker the gills.  Also called Pluteus cervinus

Pluteus:  Diagnostic Features of the genus:    1.  Fruits on wood.  2. Spore prints are pinkish. 3. Gills are free.