This name is a synonym of Quercus sinuata var. breviloba (Torr.) C.H.Mull..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 171865) with original publication details: Mem. Natl. Acad. Sci. 20: 102 1924.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:215603-2.
This name was in version 1 of The Plant List, record kew-171865.