A revision of Chorizema (Leguminosae: Mirbelieae)

Abstract

A taxonomic revision is presented for the genus Chorizema Labill. The circumscription is enlarged slightly to include three species formerly in Oxylobium Andrews. Of the 26 taxa recognised, three species and one subspecies are described as new: C. circinale, C. retrorsum, C. ulotropis, and C. aciculare subsp. loxum respectively. Three new intergeneric combinations are made: C. carinatum, C. obtusifolium, C. spathulatum; one new infrageneric combination is made: C. racemosum; and three names are reinstated: C. humile, C. nanum, and C. rhynchotropis. A key, descriptions, illustrations and distribution maps and notes are provided for all taxa. Lectotypes are chosen where necessary. Relationships between species are analysed cladistically and, on this basis, a new infrageneric classification including three sections, of which two are new (Parviflores and Hirtistylis), is constructed.