This name is a synonym of Banksia spinulosa var. cunninghamii (Sieber ex Rchb.) A.S.George.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Amer. Gard. Mag. 1: 295 1833.
This name was in version 1 of The Plant List, record kew-2669132, and has not been changed.