A review of the genus Pileanthus (Myrtaceae)
Pileanthus Labill., a small genus of floriferous shrubs endemic to southern Western Australia, is reviewed. Eight species are recognised, one of which has two subspecies. Four new species (Pileanthus auranticus Keighery, P. bellus Keighery, P. rubronitidus Keighery and P. septentrionalis Keighery) and one new subspecies (P. peduncularis subsp. piliferus Keighery) are described, and P. vernicosus F. Muell. is reinstated.