Growing on oak.

Pleurocystidia ellipsoid. Cheilocystidia ellipsoid, pyriform and clavate. Spores globose to subglobose, 5 – 6 µm.

Pileipellis an irregular epithelium / cystoderm.

If this collection has lageniform pleurocystidia it is P. chrysophlebius, and if I am correct that the pleurocystidia is ellipsoid, this is an undescribed species.