(Bishop Agardh), has long been illustrious; and I did this with all the more readiness, as neither in Dr. J. D. Hooker's Handbook on New Zealand plants, nor in my little work on the Vegetation of the Chatham Islands, specific notes on any of the Algœ of that group are contained. Furthermore, I hope to encourage renewed and extended enquiries in this direction, by drawing attention to the fact, that one-third of the few Algœ hitherto collected in the Chatham group, augment actually the long list of species already discovered at the main islands of New Zealand. It seems thus evident, that any methodic search after such plants, throughout all seasons, will be rewarded with many new disclosures of this portion of the oceanic vegetation.

The species hitherto unrecorded from any part of New Zealand, and mostly new to science, are Hymenocladia lanceolata, Landsboroughia myricifolia, Cystophora scalaris, C. dissecta, A mphiroa Wardii, Palyripha nia Muelleriana. The first of these plants introduces even a new genus into the vegetation of New Zealand, of which latter that of the Chatham Islands must be regarded as a mere offshoot. The species are arranged according to Harvey's Index Generum Algarum, which that lamented great observer promulgated in 1860. Omitted from the list is Conferva Darwinii, to which plant I have already referred in the preface to the Vegetation of the Chatham Islands.

F. v. M.

Melbourne Bot. Gardens