Found on the courthouse grounds and cut open by an employee. It had apparently been exposed on the surface for a few days before collection which may explain the greenish growth on the exterior. Smells strongly of cleaning solvent (Ammonia?) I have not had a chance to stop in to see what trees or if any more may be found nearby. Update: Confirmed by collector; found under Acer in a "landscaped island" in the center of a parking lot (image added)