Page image

Art. VII. —Descriptions of New Native Phanerogams. By D. Petrie, M.A., Ph.D. [Read before the Auckland Institute, 3rd December, 1913.] 1. Ranunculus Grahami sp. nov. Folia radicalia pauca, coriacea, ± 10 cm. longa; petiolis 6–7 cm. longis crassiusculis, subcomplanatis, inferne vaginantibus; laminis semi-orbicu-laribus, 5 cm. latis, in segmenta tria late cuneata partitis, segmentis in lobos 3–5 breves rotundatos sectis. Folia caulina 1–2, subdistantia, radicalibus similia sed minora breviusque petiolata. Scapi foliis longiores, petiolis graciliores, in fructu ± 15 cm. longi, glabri, 1-flores (1–4-flores?). Flores majusculi, ± 1½ cm. lati; sepala 5, obtusa, plurinervata, extra parce subpilosa; petala 10, sepalis longiora, 1½ cm. longa, anguste cuneata, obtusa; stamina 1–2-seriata; carpella plurima; achenia turgida, breviter 2-alata, rostro longo curvato. Rootstock rather stout, descending, giving off numerous fleshy lateral roots. Radical leaves few, coriaceous, ± 10 cm. long; petioles 6–7 cm. long, rather stout, glabrous, more or less flattened and expanded below into a broad sheath bearing sparse silky hairs at its mouth; blades semiorbicular in outline, broader than long, deeply parted into 3 broadly cuneate segments that are cut into 3–5 short rounded lobes, glabrous but for a few delicate silky hairs on the margin and upper part of the back, nerves obscure, reticulate, veining evident. Cauline leaves 1–2, rather distant, similar to the radical, but smaller and with shorter petioles. Scapes more slender than the petioles, exceeding the leaves. in fruit ± 15 cm. long, glabrous, 1-flowered (in my specimens). Flowers rather large, ± 1½ cm. across. Sepals 5, broadly ovate, obtuse, membranous, yellowish, many-nerved, sparsely covered outside with delicate white silky hairs; petals 10, longer than the sepals, 1½ cm. long, narrow-cuneate, obtuse, yellow, bearing a single nectary near the base; stamens in 1 or 2 series, with rather long flattened filaments; carpels very numerous; achenes turgid, shortly 2-winged with a long curved beak and a few delicate silky hairs chiefly on the wings. Hob.—Rocks of “Aiguille Roque,” a peak south of Malte Brun, Mount Cook district, 9,000 ft.; Coronet Peak, Mount Cook district. Mi. Peter Graham, chief guide at the Hermitage, collected this plant, which is named in his honour. He writes me that the scapes frequently bear 3 or 4 flowers. The plant seems more nearly related to R. pinguis Hook. f. than to any of the mainland species. 2. Epilobium antipodum sp. nov. Epilobium E. confertifolio Hook. f. affine; differt foliis majoribus, elliptico-obovatis, in petiolos latiusculos paene aequilongos attenuatis, capsulis robustioribus longioribusque.