Quercus chrysolepis
Leaf galls, separable from leaf intact
Small scattered cells, leaf scarcely thickened, exit hole above.
- LH Weld: (1957) Cynipid Galls of the Pacific Slope©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018313555&view=1up&seq=62&skin=2021