Phylum: Basidiomycota Family: Tricholomataceae
Sphagnurus paluster (Peck) Redhead & V. Hofst.
Sphagnum Greyling
Common in its Sphagnum habitat, often in large groups. The milky-brown cap is striate for much of its width
References:
Moser (1983) Agarics and Boleti
Phillips (2006) Mushrooms