eastern hop hornbeam

I’m still struggling to figure out what’s wrong with my American Hornbeam. A ton of leaves have these black spots showing up on them. I suspected fungus so I removed all the leaves with spots and sprayed with fungicide some weeks ago, but that didn’t seem to have any effect on the tree. Overall...

I could use some help or confirmation on identifying this tree. I thought it was a beech when I collected it. As it is in an area with hornbeams, elms and beech. I collected some certain hornbeam, this one confused me with the horizontal banding on the trunk. The leaf and buds match another...