 George 's arrangement remained current until 1996 , when Kevin Thiele and Pauline Ladiges published an arrangement informed by a cladistic analysis of morphological characteristics . Their arrangement maintained B. prionotes in B. subg . Banksia , but discarded George 's sections and his series Crocinae . Instead , B. prionotes was placed at the end of series Banksia , in subseries Cratistylis . Questioning the emphasis on cladistics in Thiele and Ladiges ' arrangement , George published a slightly modified version of his 1981 arrangement in his 1999 treatment of Banksia for the Flora of Australia series of monographs . To date , this remains the most recent comprehensive arrangement . The placement of B. prionotes in George 's 1999 arrangement may be summarised as follows : 
