Quercus chrysolepis
Leaf galls, integral [sic]
Small cream-colored spangle in numbers, under side, crater-like top. Fig 176.
Fig 176. Unknown. On under side of leaf of Q. chrysolepis, not on a vein. Brown, rugose, with a lighter smooth area in center. Seen at Camp Baldy.
”- LH Weld: (1957) Cynipid Galls of the Pacific Slope©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018313555&view=1up&seq=88