mosses and lichens, in which the epiphytic Chiloglottis traversii attains its northern limit in company with the common Thelymitra longifolia and Orthoceras solandri. Raoulia monroi attains here its northern limit, and forms small patches on the bare surface, but of so inconspicuous a character that it might easily be overlooked but for the white silky hairs displayed by the recurved margins of the leaves. Olearia furfuracea and Corokia buddleoides have not, I believe, been recorded from a more southern locality, or a greater altitude. Dracophyllum longifolium occurs sparingly, and attains its northern limit; it has not previously been recorded as occurring in the North Island. Panax colensoài is the most prominent shrub, forming handsome dwarf bushes, widely different from the small tree-like habit it assumes at its northern limit on the Gape Colville ranges. It affords a welcome shelter to Hymenophyllum bivalve, H. multifidum, and a few other ferns more or less common; the total number of species collected above 3,000 feet did not exceed seventy, but owing to the approach of night I was able to examine a small portion of the central range only. Still, making every allowance, the vegetation of the mountain comprises a remarkably limited number of species. Waihorepa. The Waihorepa valley, about two miles from Kaitiriria, appears to have been the bed of an ancient lake, and is remarkable for the singular fissures and holes which break its surface, and have probably been caused by earthquakes. The most striking of these fissures extends for more than half a mile, although much interrupted, and in the deepest places affords a favourable habitat for several plants of a southern type. Clematis colensoi, Cyathodes empetrifolia and Lomaria alpina probably attain their northern habitat in this singular locality. Craspedia fimbriata grows to a large size, and the charming terrestrial orchid Corysanthes rotundifolia is found sparingly. The luxuriant vegetation of the fissures contrasted forcibly with the dried grasses and stunted shrubs which marked the level of the plain, where the only plants worth notice are Dracophyllum subulatum and Poa australis, var. lœvis, with tufts of Celmisia longifolia, which is known all through the district as “cotton-grass.” Otumakokori. At the foot of the Paeora range several tropical ferns exhibit the greatest vigour and luxuriance in an atmosphere of heated steam on the banks of the Otumakokori—the boiling river. Near the source of this remarkable stream are a number of boiling springs, some of which have their origin in cavern-like recesses, others in holes eight to fifteen feet in depth, boiling wells in fact, but most of them sufficiently large to allow of their investigation by anyone