Thin-walled Maze Polypore (Daedaleopsis confragosa)
In a moist forest, on an oak branch.
I've gotten a bit rusty with my fungi, so I'm double-checking this one. Feel free to pitch in if you disagree/agree. The maze-like (rather than gilled) fertile surface brought me to this ID.
Edit: I found out from Joan Knapp that this is D. confragrosa rather than D. quercina. The latter does not really occur down South. She had a similar specimen as mine sequenced and it was very closely related to D. congragrosa.
"Daedaleopsis confragosa" is a species of polypore fungus in the family Polyporaceae. A plant pathogen, it causes a white rot of injured hardwoods, especially willows. The fruit bodies are semicircular and tough, have a concentrically zoned brownish upper surface, and measure up to 20 cm in diameter.
