Acknowledgments.

I am much indebted to the Curators of the Museums at Auckland and Wellington, and to the Director of the Plant Research Bureau for facilities provided, enabling me to study the moss collections housed in these institutions. Once again I have to acknowledge the kindness of Mr. Sainsbury, in critically examining material forwarded, and for helpful information. Mr. Allison, whose unrivalled knowledge of the local bryophytes is acknowledged, has placed me much in his debt by placing at my disposal his numerous local finds, as well as by sharing many of them with me.

In the notes that follow, abbreviations are used as under:— Dr. H. H. Allan (H.H.A.); W. Bell (W.B.); Dr. Sven Berggren (S.B.); K. W. Allison (K.W.A.); H. N. Dixon (H.N.D.); Sir J. D. Hooker (J.D.H.); Dr. Lauder Lindsay (L.L.); Dr. Donald Petrie