This name is a synonym of Notholithocarpus densiflorus (Hook. & Arn.) Manos, Cannon & S.H.Oh.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 114425) with original publication details: Stand. Cycl. Hort. 3569 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:141712-2.
This name was in version 1 of The Plant List, record kew-114425.