This name is a synonym of Banksia serrata L.f..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym and as a spelling variant with original publication details: Cult. Prot. 112 1809.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:703181-1.
This name was in version 1 of The Plant List, record kew-2669255, and has not been changed.