Quercus reticulata [rugosa]
Stem galls
Detachable
Similar [to Disholcaspis rubens] with a free-rolling cell in a large cavity.
- LH Weld: (1960) Cynipid galls of the southwest©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018354765&view=1up&seq=22