8. O. Lyallii, Hook. f. Fl. Nov. Zel. i. 116.—A robust shrub or small tree, sometimes reaching the height of 30 ft., with a trunk 18–24 in. diam.; branches stout, spreading, densely tomentose. Leaves 4–8 in. long (or more in young plants), ellipticovate or orbicular-ovate, abruptly acuminate, shortly petiolate, excessively rigid and coriaceous, white with floccose tomentum above but becoming glabrous when old, under-surface densely clothed with soft white wool; margins irregularly doubly crenate. Racemes terminal, stout, 4–8 in. long; rhachis, pedicels, and bracts clothed with snow-white wool. Heads large, discoid, 1¼–1½ in. diam., darkbrown; involucral scales numerous, in 4–8 series, linear, villous at the tips. Achenes densely silky.—Handb. N.Z. Fl. 125; Kirk, Students' Fl. 266. Eurybia Lyallii, Hook. f. Fl. Antarct. ii. 543.
The Snares: Abundant, Kirk! Auckland Islands: Apparently rare, Lyall, Bolton, Kirk!
A magnificent plant, nearly related to O. Colensoi, but at once distinguished by the open and far more robust habit, larger and broader leaves, which are tomentose on the upper surface as well as beneath, and by the scales of the involucre being in several series.
9. O. Buchanani, T. Kirk, Students' Fl. 267.—An erect shrub or small tree; branchlets as thick as a goose-quill, reddish, glabrous. Leaves opposite, 2–4 in. long, elliptic-lanceolate, obtuse, gradually narrowed into a short petiole, quite entire, flat, glabrous above, clothed with thin appressed whitish tomentum beneath; veins finely reticulated above, obscure beneath. Heads small, ¼ in. long, in rather loose branched axillary corymbs about equalling the leaves; pedicels slender, pubescent. Involucral scales 8–10, pubescent at the tips. Florets of the ray 3–4, ligulate; of the disc about 4, campanulate above. Achenes short, grooved, pubescent.
North Island: Buchanan! The exact locality not known.
Founded on a single specimen in Mr. Kirk's herbarium stated to have been collected by Mr. Buchanan in the year 1870 in some locality in the North Island. It is evidently a distinct species, not closely related to any other. It and O. Traversii are the only species found in New Zealand with large opposite leaves.
10. O. Traversii, Hook. f. Handb. N.Z. Fl. 731.—A small tree 15–30 ft. high, with a trunk 1–2 ft. diam.; bark pale, furrowed; branches tetragonous, clothed with appressed silky tomentum, as are the leaves beneath, branches of the inflorescence, and involucres. Leaves opposite, 1½–2½ in. long, oblong or ovate-oblong to broadly ovate, acute or apiculate, shortly petiolate, quite entire, flat, glabrous above or slightly silky when young. Panicles numerous, axillary, much-branched, shorter or longer than the leaves. Heads numerous, small, ¼ in. long, discoid; scales of the involucre few, linear-oblong, obtuse or subacute. Florets 5–15; outer ones female, with a minute tubular corolla with an oblique mouth; central hermaphrodite, campanulate above; style-branches
