of the branches, usually exceeding the leaves; bracts few, linear or lanceolate. Heads solitary, large, 1½–1¾ in. diam.; involucral scales more or less concealed with white cobwebby tomentum. Ray-florets ligulate, white or purplish; disc-florets violet-purple. Achenes linear, curved, slightly pubescent.—Students' Fl. 264. O. operina, Hook. f. Handb. N.Z. Fl. 731 (in part). O. angustifolia, var., Hook. f., ex Buch. in Trans. N.Z. Inst. vii. (1875) 336, t. 15.
Chatham Islands: In swampy places on the higher parts of the island and on cliffs, H. H. Travers! Enys! Cox! Keketerehe. November–February.
This comes very near to O. operina and O. angustifolia, but is sufficiently distinct in the broader leaves and more slender peduncles with fewer bracts.
4. O. operina, Hook. f. Fl. Nov. Zel. i. 114.—A stout sparingly branched shrub 6–12 ft. high; branches, leaves beneath, peduncles, and inflorescence densely clothed with soft white tomentum. Leaves often crowded at the tips of the branches, spreading, 2–4 in. long, ½–¾ in. broad, narrow obovate-lanceolate, acuminate, gradually narrowed into a short winged petiole, rigid, very thick and coriaceous, glabrous above; margins with numerous close blunt teeth with callous tips. Peduncles crowded at the ends of the branches, 1–3 in. long, stout, densely clothed with numerous closely imbricating lanceolate or linear obtuse bracts. Heads large, 1–1½ in. diam.; involucral scales in 2–3 series, tomentose. Ray-florets white; discflorets yellow. Achenes ¼ in. long, linear, conspicuously ribbed, silky.—Handb. N.Z. Fl. 124; Kirk, Students' Fl. 264. Arnica operina, Forst. Prodr. n. 299.
Var. robusta, Kirk, Students' Fl. 265.—Branches short, stout. Leaves shorter and broader, with more deeply toothed margins. Peduncles shorter and stouter.
South Island: Sounds of the south-west coast, from Martin's Bay to Preservation Inlet; abundant. December–January.
5. O. angustifolia, Hook. f. Fl. Nov. Zel. i. 115.—A stout branching shrub or small tree 6–20 ft. high; branches, leaves beneath, and peduncles clothed with soft white tomentum. Leaves 3–5 in. long, ½–¾ in. broad, narrow-lanceolate, acuminate, narrowed to the base, sessile, extremely rigid and coriaceous, glabrous and glossy above, irregularly finely crenate-dentate, teeth with hard callotis points; midrib and principal nerves evident below. Peduncles crowded at the ends of the branches, stout, shorter than the leaves, clothed with laxly imbricating foliaceous bracts, white beneath. Heads large, 1½–2in. diam.; involucral scales in two series, the outer densely tomentose. Ray-florets white; discflorets purple. Achenes linear, grooved, silky.—Handb. N.Z. Fl. 124; Kirk, Forest Fl. t. 138; Students' Fl. 265.
South Island: Puysegur Point, Kirk; near the Bluff Hill, Aston. Stewart Island: Sea-coast south of Paterson's Inlet, Lyall, Kirk! Petrie! Thomson! Titi-a-weka. November–December.
