 No further subspecies or varieties of B. prionotes have been described , and it has no taxonomic synonyms . Its only nomenclatural synonym is Sirmuellera prionotes ( <unk> . ) Kuntze , which arose from Otto Kuntze 's unsuccessful 1891 attempt to transfer Banksia into the new name Sirmuellera . When Carl Meissner published his infrageneric arrangement of Banksia in 1856 , he placed B. prionotes in section Eubanksia because its inflorescence is a spike rather than a domed head , and in series Salicinae , a large series that is now considered quite heterogeneous . This series was discarded in the 1870 arrangement of George Bentham ; instead , B. prionotes was placed in section Orthostylis , which Bentham defined as consisting of those Banksia species with flat leaves with serrated margins , and rigid , erect styles that " give the cones after the flowers have opened a different aspect " . In 1981 , Alex George published a revised arrangement that placed B. prionotes in the subgenus Banksia because of its flower spike , section Banksia because its styles are straight rather than hooked , and the series Crocinae , a new series of four closely related species , all with bright orange perianths and pistils . 
