United States, Massachusetts, Middlesex, Middlesex Fells Reservation; 42.4466 -71.111
42.44894722 -71.07704167
47 meters (154ft)
Mixed hardwood forest, mostly oak
Underside of well-rotten oak log
The substrate is very hard and well rotten, probably oak; two forms: white and colored (pale hues of pink, blue, brown), the colored forms corresponding to more mature fruiting bodies I think