The genus was named by American botanist Albert Charles Smith in 1985, in Flora Vitiensis Nova 3, containing five species. Only three, from Fiji and Vanuatu, are generally accepted as belonging to the genus.[1][2]
^Mast, A. R., C. L. Willis, E. H. Jones, K. M. Downs, and P. H. Weston. (2008) A Smaller Macadamia from a More Vagile Tribe: Inference of Phylogenetic Relationships, Divergence Times, and Diaspore Evolution in Macadamia and Relatives (Tribe Macadamieae; Proteaceae). American Journal of Botany 95, no. 7 : 843–70.