Quercus garryana
Leaf galls, integral
Groups of 2-4 oval cells in leaf blade, little thickening, Fig 179
Fig 179. Unknown. Cells in parenchyma of leaf of Q-garryana, single or in groups of two to four, exit hole above. Seen at Caves Junction and Corvallis, Oreg.
”- LH Weld: (1957) Cynipid Galls of the Pacific Slope©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018313555&view=1up&seq=88