Rendle No year - Rendle AB, Baker EG, Moore SLM (1921) A Systematic Account of the Plants collected in New Caledonia and the Isle of Pines by Prof. R. H. Compton, M.A., in 1914.-Part I. Flowering Plants (Angiosperms). Journal of the Linnean Society of London, Botany 45(303): 245-417. doi: 10.1111/j.1095-8339.1921.tb00125.x.
There is no corrections for Costularia neocaledonica yet.