A revision of Calothamnus quadrifidus (Myrtaceae)
GEORGE, A.S. AND GIBSON, N.
The highly variable species Calothamnus quadrifidus R.Br. is discussed and an infraspecific classification with eight subspecies is proposed. The following new taxa are described: Calothamnus quadrifidus subsp. petraeus A.S.George & N.Gibson, C. quadrifidus subsp. seminudus A.S.George & N.Gibson and C. quadrifidus subsp. teretifolius A.S.George & N.Gibson. New combinations are C. quadrifidus subsp. angustifolius (Ewart) A.S.George & N.Gibson, C. quadrifidus subsp. asper (Turcz.) A.S.George & N. Gibson and C. quadrifidus subsp. homalophyllus (F.Muell.) A.S. George & N.Gibson, and a new status is given for C. quadrifidus subsp. obtusus (Benth.) A.S.George & N.Gibson.
