In 1905, James Britten challenged the genus name "Banksia", on the grounds that "Banksia" J.R.Forst & G.Forst had precedent over "Banksia" L.f.. Britten adopted the name "Isostylis" for the entire genus, republishing the names "Isostylis dentata (L.f.) Britten" for "B. dentata" (Tropical Banksia), "Isostylis ericifolia (L.f.) Britten" for "B. ericifolia" (Heath-leaved Banksia), "Isostylis integrifolia (L.f.) Britten" for "B. integrifolia" (Coast Banksia) and "Isostylis serrata (L.f.) Britten" for "B. serrata" (Saw Banksia). This challenge failed, "Banksia" L.f. was eventually conserved, and his four names are now considered taxonomic synonyms of their respective names under "Banksia" L.f. None of them are considered members of "Isostylis".