Of this I have only seen a single leaf from Mr. Chapman's type, and a specimen of what appears to be the same collected by Mr. Petrie in the Clinton Valley. Further material is required to prepare a satisfactory description. It appears to differ from C. verbascifolia in the smaller size, thinner and more appressed tomentum, and much less woolly scapes, bracts, and involucres. A plant gathered by Mr. Cockayne on the Humboldt Mountains seems to be intermediate between the two species.
24. C. Mackaui, Raoul, Choix Pl. Nouv. Zel. 19, t. 14.—Leaves 6–20 in. long, 2–4 in. broad, linear-lanceolate, acuminate, gradually narrowed to the base, quite entire, membranous, glabrous on both surfaces when mature or slightly cottony at the base, often rather glaucous beneath; petiole broad, grooved, sheathing at the base, usually cottony on the inner surface. Scapes 12–24 in. high, stout, glabrous or sparingly cottony; bracts numerous, lanceolate, acuminate, sheathing at the base. Heads about 2 in. diam.; involucral bracts numerous, ovate-lanceolate, acuminate, membranous, glabrous. Rays long and narrow. Disc-florets very numerous; corolla thickened at the base. Achene linear, glabrous, strongly ribbed.—Hook. f. Fl. Nov. Zel. i. 122; Handb. N.Z. Fl. 133; Kirk, Students' Fl. 287. C. coriacea, Raoul, Ann. Sci. Nat. 1844, 119 (non Hook. f.).
South Island: Marlborough—Mount Fyffe, H. B. Kirk (leaves only). Canterbury—Rocky places near Akaroa, Raoul; Mount Herbert, W. Gray! January–February.
A very distinct species, remarkable for the long acuminate leaves green and glabrous on both surfaces, the large heads, and herbaceous acuminate involucral bracts.
25. C. coriacea, Hook. f. Fl. Antarct. i. 36.—Leaves 8–24 in. long or more, ¾–3 in. broad, lanceolate or linear-lanceolate or linear-oblong, acute, narrowed towards the base, coriaceous, upper surface longitudinally furrowed or almost plicate and covered with a delicate silvery pellicle, beneath clothed with appressed white and silvery tomentum; margins entire or very obscurely serrulate; sheaths short, broad, grooved, densely clothed with soft cottony or woolly tomentum. Scapes stout, 1–3 ft. high, densely woolly or cottony; bracts numerous, linear, erect, cottony. Head 1½–3 in. diara. or more; involucral bracts numerous, linear-subulate, cottony or almost glabrate. Rays very numerous, spreading, 1½ in. long; tube of corolla more or less pubescent. Achene linear, compressed, grooved, pubescent.—Fl. Nov. Zel. i. 121, t. 32; Handb. N.Z. Fl. 132; Kirk, Students' Fl. 287. C. Martini, Buch, in Trans. N.Z. Inst. xix. (1887) 213. C. flaccida, Cockayne in Trans. N.Z. Inst. xxxi. (1899) 422. Aster coriaceus, Forst. Prodr. n. 297; A. Rich. Fl. Nouv. Zel. 250; A. Cunn. Precur. n. 439.
North Island: Tararua Mountains, Buchanan. South Island: Abundant in mountain districts. Altitudinal range 1500–4500 ft. Cotton-plant; Leather-plant. December–February.
