A taxonomic revision of Alyxia (Apocynaceae) in Australia

Abstract

The genus Alyxia Banks ex R. Br. is revised for Australia. Seven species are recognised, namely A. buxifolia R. Br., A. grandis sp. nov., A. ilicifolia F. Muell., A. orophila Domin, A. ruscifolia R. Br., A. sharpei sp. nov. and A. spicata R. Br. Alyxia ruscifolia has three subspecies with subsp. major and subsp. tropica newly described. Alyxia ilicifolia has two subspecies with subsp. magnifolia comb. & stat. nov. based on A. magnifolia Bailey. Generic and specific descriptions, a key to species, notes on typification, variation, distribution, ecology and conservation status are provided. Lectotypes are chosen for a number of names.