The photos agree well with A. pocillator, a species otherwise known from the southeastern USA. This record from Athens, OH will be important, if confirmed. Classic A. pocillator has a cup-like bulb, and belongs to a toxic group. There are multiple concepts of A. abruptibulbus, a more pale species with an almond odor, but none have a cup-like bulb.

do seem to be one of the keys here; along with the odor. Took another look at 23838, and the one pic does show fibrils on the cap; although is unclear to me whether or not the fibrils are darkened or the ambient lighting for the photo created shadows. I have found abruptibulbus (at least that’s what I called it) with grainy or slightly scaly cap, but not darkened. The pleasant odor of this one is hard to miss. Phillips description/pic of A. pocillator really comes off like a dark scaly version of abruptibulbus without the nice odor.

Dark fibrils on the cap still rules out abruptibulbus..