sized Daphnia was also obtained in one; the body was reduced to a brownish mass, but the bivalve shell and portions of the limbs were intact. The Diatoms and other minute organisms are probably present not as prey, but as commensalists or messmates, taking advantage of the rich food obtainable in the bladders to take up their residence in them. Of the four species of Utricularia described in the Handbook Fl. N. Z., three have their bladders borne on the rhizome, while U. protrusa has floating stems and capillary leaves like the English species. A fifth species has been mentioned by Mr. Kirk,*“Trans. N. Z. Inst.” Vol. V., p. 343. but apparently not described, as occurring in Rotomahana, and having the same arrangement of the bladders on the leaves. Nat. Ord. Verbenaceæ. Teucridium parvifolium occurs plentifully enough near Dunedin, but I have not examined its flowers. Myoporum lœtum, the only other representative of the order in this part of the island, is also extremely common. This plant produces its flowers chiefly from November to January, but it continues to put out blossoms sparingly for a considerable part of the year. These unseasonable flowers are commonly defective, their anther-cells being destitute of pollen and their pistil also being more or less aborted. I cannot conceive of what use they are to the plant. The ordinary flowers are white and conspicuous, and produce a little honey. They have little or no scent, and I cannot say whether they are self-fertile or not. The lining of hairs on the lobes of the corolla probably serves to impede small and unsuitable insects from obtaining the honey. Nat. Ord. Labiatæ. This large order—the flowers of which present such a variety of contrivance to ensure cross-fertilization—is represented by two very small plants in New Zealand, belonging to the genera Mentha and Scutellaria. The latter I have not seen. Mentha cunninghamii belongs to a genus in which the corolla does not show the extreme irregularity of typical Labiates. There is a tendency also to dimorphism, which this species among others exhibits, one of the characters given in the “Handbook of the N.Z. Flora,” p. 226, being “Stamens included in the corolla-tube of some flowers, exserted in others.” I have not, however, noticed this difference. Nor have I noticed any tendency towards production of female as well as hermaphrodite flowers, which prevails in some species. The flowers of our species are only slightly irregular; they are, however, proterandrous, strongly sweet-scented, and produce a great amount of honey, and are consequently much visited by insects.