A Taxonomic Revision of Gomphrena (Amaranthaceae) in Australia

Abstract

A taxonomic revision of the genus Gomphrena L. (Amaranthaceae) in Australia is presented. Of the 33 species recognised, 12 species are described as new: G. arida, G. atrorubra, G. connata, G. cucullata, G. eichleri, G. floribunda, G. humifusa, G. kanisii, G. lacinulata, G. magentitepala, G. occulta, G. rosula; as are five subspecies: G. affinis F.Muell. ex Benth. subsp. pilbarensis, G. brachystylis F.Muell. subsp. pindanensis, G. canescens R.Br. subsp. erythrina, G. diffusa R.Br. subsp. arenicola, G. leptoclada Benth. subsp. saxosa. One new combination has been made: G. leptophylla (Benth.) J. Palmer, and G. breviflora F.Muell. has been reinstated. A key, descriptions, distribution maps, and notes are provided for all taxa and photographs of type specimens are provided for new taxa. Lectotypes have been chosen where necessary and comments are made on the present infra-generic classification in the genus.