Clement, and Dr. W. Culberson have assisted by furnishing comparative material. Mr. A. J. Healy, Asst. Director of the Botany Division of the D. S. I. R., has made available all specimens housed in the D. S. I. R. herbarium and literature housed in the library. Dr. James Murray has facilitated access to the Thomson collection, housed at Otago University. Mr. G. G. Hamlin, Botanist to the Dominion Museum, at Wellington, facilitated my examination of collections housed in the herbarium of that institution, and Dr. W. P. Philipson has forwarded collections made near Cass, in western Canterbury. I am also indebted to Mr. P. Havard Williams, Chief Librarian at the Otago University, for securing literature not locally available.