Growing on a Quercus rubra.
Penultimate pic is cross-section, last pic shows reaction with KOH. It doesn't show up as much in the pic, but it turned slightly greenish.
Growing from rotting logs in oak and pine woods.
Caps 5-9 cm across
Stem 5.5-11.5 cm long and 1-2 cm thick
Hollow stem
White spore print
Growing singly and clustered in mixed hardwood forest.
No notable odor
Caps 2.5-4 cm across
Stem 5-9 cm long
Thick, white spore print
Spores 5-6 x 2.5-3 μ
Growing on fallen branch in mixed hardwood forest.
Cap 5.5 cm across
Stem 2.5 cm long
White spore print
Spores 10-11 x 3-4 μ
Northern Illinois white pines and hardwoods, streamside
Trailside among White Pines in Northern Illinois