Art.—XLIX.—On some New Species of New Zealand Plants.
[Read before the Philosophical Institute of Canterbury, 4th October, 1871.]
Aciphylla montana, Armstrong. n. s.
Small, 8–10 inches high, smooth and shining. Radical leaves numerous, spreading, 4–5 inches long, pinnate. Leaflets jointed, 2–3 inches long, ⅕–⅛ broad, linear or sword-shaped, pungent, striate, midrib rather obscure; sheath 1–1 ½ inches long, ⅓–½ inch broad, with one small subulate leaflet on top of each side. Flowering stem about 8 inches high, as thick as a goose quill, deeply grooved, shining, with one leaf about halfway up; umbels few, fascicled, in a contracted panicle 2 inches long; peduncles very short; bracts numerous, 1–2 ½ inches long, with one to three spreading leaflets, and two small subulate ones at the top of the sheath. Fruit small, about ⅙ of an inch long, closely packed on very short pedicels; carpels with five rather narrow wings. Flowers not seen.
Hab.—On rocky ledges 4,000 feet altitude, Rangitata District, 1869; Collected by W. Gray and John F. Armstrong.
A curious little species approaching some states of A. Monroi, Hook, f., but sufficiently distinct in the fascicled umbels and very large bracts.
Senecio Pottsii, Armstrong, n. s.
A small suffruticose, decumbent, very slender species; branches ascending 3–6 inches long, flexuose, grooved, covered with white loose cottony tomentum. Leaves petioled, alternate, ovate or spathulate, ½–1 inch long, crenate, glabrous above or nearly so; covered below with appressed cottony tomentum. The veins almost parallel with the midrib; head solitary, on slender bracteate peduncles, turbinate ⅓ inch long; involucral scales 15–20, linear spreading, obtuse, cottony.
Hab.—Mount Jollie, Rangitata District, altitude 4,500 feet, W. Gray and John F. Armstrong.
My specimens are very imperfect, but the species seems very distinct from any other New Zealand one, differing chiefly in the suffruticose habit
and solitary heads. I have named this distinct and curious species in compliment to Mr. T. H. Potts, of Governor Bay, who has paid much attention to the cultivation of New Zealand plants.
Trichomanes Armstrongii, Baker.
(Hymenophyllum Armstrongii, Hook. f.)
A very small species, forming dense dark green coloured masses beneath water-falls; rhizome creeping, very slender; fronds about ½ inch long, usually pinnate, but frequently flabellate; pinnules few, 2–4 lines wide, with no veins but the midrib, and a peculiar purple ciliated margin, which distinguishes the species from any other New Zealand form; sori 1–2 or 4 to a frond at the tips of the pinnules, obconic and ciliated.
Hab.—Waterfalls near the sources of the Waimakiriri, altitude 3,800 feet, Dr. Haast and J. B. Armstrong, 1867.
Veronica anomala, Armstrong. n. s.
A slender, erect, quite glabrous shrub, 2–3 feet high, with long weak purplish branches. Leaves patent, shortly petioled, glabrous, ½–1 inch long, ¼ inch broad, coriaceous, linear-oblong, concave, entire, polished on the upper surface; midrib obscure. Flowers crowded together at the points of the branches; sessile in the axils of the uppermost leaves; sepals ⅙ inch long, linear-oblong, acute; corolla white, tube ¼ inch long; limb ¼–½ inch broad; lobes 3 nearly equal, or 2 unequal, with the longer one forked at the tip; capsule not seen. Flowers in winter.
A curious plant, differing from all other Veronicas in the number of corolla lobes. In foliage it much resembles V. vernicosa, and in the corolla has some distant resemblance to V. Colensoi. It may prove to be an hybrid between these two species.
Hab.—Head waters of the River Rakaia.
Gentiana Novœ Zelandiœ, Armstrong. n. s.
Root slender, annual; stems numerous from the root, ascending, about 6 inches high, very slender, rather leafy, many-flowered, black when dry. Leaves linear-spathulate, linear-oblong, or spathulate-oblong, ¼ to ½ inch long. Flowers about ½ inch long, pale yellow, on slender pedicels; calyx rather deeply divided; lobes shorter than the corolla, linear-acute; corolla-lobes, ovate-oblong, acute.
Hab.—Sources of Rangitata River, Armstrong.