them have been collected, as it is extremely difficult to furnish descriptions embracing all the numerous variations, and a considerable amount of study of the sub-genus is necessary before the student can even understand the most simple variations assumed by the species. When the first difficulties are conquered, however, it will be found that there is no other New Zealand family of plants so interesting as this. The curious dimorphism shown in sub-genus III. deserves a very careful study. It has occurred to me that the upper lobulate leaves, so often absent, are the true leaves, and that the scale-like productions commonly called leaves are in reality not true leaves, but changed petioles. I have not, however, been able to bring forward any facts to prove this, and it offers a wide and interesting field for future study. Should this idea be substantiated, it will connect the sub-genus with the section represented by V. haastii, etc. Genus Veronica, Linnæus. This genus is a very extensive one, found in most temperate and in some sub-tropical countries. The sixty species found in the colony are not found in any other country, except in the case of V. elliptica, which occurs at Cape Horn and the Falkland Islands. Proposed Arrangement. Sub-genus I.—Eu-veronica. The Speedwells. Capsules laterally compressed, didymous (rarely non-didymous). Herbs or under-shrubs. Series A.—Flowers solitary, axillary. Leaves 1/12–⅙ inch long, hairy, ovate 1. V. canescens, Kirk. Series B.—Flowers racemose; leaves entire. Leaves ¼–1 inch, linear, glabrous 2. V. linifolia, H.f. Series C.—Leaves deeply toothed; flowers racemose. Leaves ½–1 inch, ovate-cordate 3. V. elongata, Benth. Leaves ⅙–⅓ inch, ovate-spathulate 4. V. spathulata, Benth. Leaves ¼–½ inch, ovate, glabrous 5. V. nivalis, H.f. Creeping leaves 1/12–¼ inch, oblong, glabrous 6. V. bidwillii, H.f. Decumbent leaves ¼–½ inch, oblong-ovate 7. V. lyallii, H.f. Leaves ½–1½ inch, ovate, obtuse 8. V. diffusa, H. Leaves 1–1½ inch, lanceolate 9. V. lanceolata, Benth. Leaves 3–6 inches, ovate-lanceolate 10. V. cataractæ, Forst. Sub-genus II.—Koromika. The Koromikos. Capsules dorsally compressed, ovoid, valves often splitting at the tips. Section 1.—Leaves deeply serrate or crenate.