Tyromyces galactinus?
Growing at the base of a Red Maple (Acer rubrum) in a dense mixed forest. Nearby pines.
Cap has blue/green undertones with brown staining. Pores are stained olive to black.
Tyromyces galactinus is often found on broadleaf trees (like maple), so perhaps this is the right ID?
''Tyromyces galactinus'' is a species of poroid fungus in the family Polyporaceae. Found in North America, is a plant pathogen that causes a white rot in broad-leaved trees. The fungus was first described by Miles Joseph Berkeley in 1847. The type was collected near Waynesville, Ohio, where it was found growing on rotting trunks. Although originally placed in genus ''Tyromyces'' by Russian mycologist Appollinaris Semenovich Bondartsev in 1953, the name is invalid as it did not confirm to the rules.. more
