Wahlenbergia marginata (Thunb.) AD.C., Monogr. Camp., 1830, 142 W. marginata, in the broad sense, consists of at least five jordanons, one in Japan and China (Campanula marginata Thunb.); one in Java (Campanula lavendulaefolia Rein.); two in New Caledonia (Campanula gracilis Forst. f. and Wahlenbergia marginata var. neocaledonica Loth.); and one in New Zealand. Both Lothian and the writer consider this latter plant to be allied to but distinct from the New Caledonian “gracilis” jordanon and suggest for it the name: Wahlenbergia marginata var. australis Hh. n.nom. Syn. W. gracilis Cheesmn. and others (not of Forst. f.). Since it is probable that more than one jordanon of this species occurs in New Zealand, it is as well to define var. australis as the common blue-flowered plant which is to be found about Auckland, Wellington and New Plymouth. The type locality is Laingholm and type material has been deposited in the Auckland Museum. Acknowledgments The writer is extremely grateful to Messrs. J. B. Irwin, O. E. Gibson, F. W. Bartlett, and Robert Cooper for assistance with the Corybas, and T. R. N. Lothian, Robert Cooper, and F. W. Bartlett for further help with Wahlenbergia.