Bondarzewia berkeleyi
This example of Berkeley's polypore fruited in early September; McCormick's
Creek State Park, Owen county.  Growing at the base of a very large oak tree
(10 foot girth; probably over 100 years old).  This fungus is a tree pathogen
and likes to eat tree roots and wood at the base of living trees.
See Bondarzewia berkeleyi at
Fungi Growing on Wood

WHO’S IN A NAME?: Bondarzewia berkeleyi at
Eastern Penn Mushroomers

Root and Butt Rot of Oaks
North Carolina State University
Bondarzewia berkeleyi
Bondarzewia berkeleyi
Bondarzewia berkeleyi