George's Taxonomic Arrangement of Banksia - Legacy

Legacy

George's arrangement was undisputed as the accepted arrangement between 1981 and 1996. It was replaced by the arrangement of Thiele and Ladiges in 1996, but this lasted only until 1999, when George published a revised version of his 1981 arrangement. This revised version was not universally accepted, however: some Australian herbaria continued to follow Thiele and Ladiges on some points, for example by recognising the four species that they promoted.

In 2005, Austin Mast, Eric Jones and Shawn Havery published the results of their cladistic analyses of DNA sequence data for Banksia. They inferred a phylogeny very greatly different from George's taxonomic arrangement, including finding Banksia to be paraphyletic with respect to Dryandra. A new taxonomic arrangement was not published at the time, but early in 2007 Mast and Thiele initiated a rearrangement by transferring Dryandra to Banksia, and publishing B. subg. Spathulatae for the species having spoon-shaped cotyledons. They foreshadowed publishing a full arrangement once DNA sampling of Dryandra was complete.