I think. On small birch branch, on the ground. Largest was only ~2cm across.
On Cornus alternifolia
Substrate was a well rotted conifer stump
Growing on a downed oak branch
Dimitic, with septa and clamps. Heavily encrusted cystidia near the aculei
Rigidoporus undatus
DNA - Nanopore - ITS
First on iNat
New York Mycological Society walk. Third image shows KOH reaction (yellow pigments).