Recent Developments
Since 1998, Austin Mast has been publishing results of ongoing cladistic analyses of DNA sequence data for the subtribe Banksiinae. His analyses suggest a phylogeny that is very greatly different to George's taxonomic arrangement, including finding Banksia to be paraphyletic with respect to Dryandra. With respect to B. ser. Quercinae, however, Mast's analysis concurs with previous arrangements, placing its two species alone in a clade that is fairly widely separated from other clades.
Early in 2007 Mast and Thiele initiated a rearrangement of Banksia by transferring Dryandra into it, and publishing B. subg. Spathulatae for the species having spoon-shaped cotyledons. The members of B. ser. Quercinae fall within B. subg. Spathulatae, but no further details have been proffered. Mast and Thiele have foreshadowed publishing a full arrangement once DNA sampling of Dryandra is complete.
Read more about this topic: Banksia Ser. Quercinae
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