Taxonomic review of the Grevillea drummondii Meissn. species group (Proteaceae)

The Grevillea drummondii Meissn. group previously considered as two species, G. fistulosa and G. drummondii (with three subspecies) is shown to consist of five closely related allopatric species. One new species Grevillea fuscolutea Keighery is described, and a new combination Grevillea centristigma (McGillivray) Keighery is made.