ID help welcome. Aha! Think I finally found it: Armillaria tabescens (Ringless Honey Mushroom). Not positive, because it seems pretty variable in appearance, but the description seems to match. Brute force: Google Image search for "mushroom cluster" turned up one that looked right & was identified with the common name.
ID help welcome. Not sure whether it's Turkey Tail or False Turkey Tail. (Did I check what the underside looked like? No, of course not...) ~3" wide, growing flat on a downed tree trunk.
This one has me stumped. Great? Spotted? Swamp? Help? Wooded swamp, New Jersey.