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314 Most nearly allied to C. longifolia, from which it is separated by the broader and flatter membranous leaves. Mr. Kirk placed my variety rugulosa under C. Monroi, from which it differs markedly in the much less rigid habit, spreading thinner leaves, shorter cauline bracts, nearly glabrous involucre, and fewer rays. It is much nearer to C. Adamsii.

32. C. longifolia, ''Cass. in Dict. Sci. Nat.'' xxxvii. 259—Very variable in size and degree of robustness. Leaves few or many, 1–18 in. long, $1⁄12$–$1⁄3$ broad, narrow-linear or narrow linear-lanceolate, acute or acuminate, membranous or somewhat coriaceous but never rigid, upper surface glabrous or silvery, furrowed or wrinkled or nearly smooch, beneath clothed with white silvery tomentum; margins usually much revolute but sometimes almost flat; midrib distinct beneath; sheatiis variable in length, broader than the blade, membranous, white and cottony or almost glabrous. Scapes equalling or exceeding the leaves, slender, cottony; bracts few or many, linear. Head ½–1½ in. diam.; involucral bracts linear-subulate, glabrous or cottony, often blackish at the tips. Rays few or many, narrow. Achene linear, glabrous or rarelv silky.—''Hook. f. Handb. N.Z. Fl. 134; Benth. Fl. Austral.'' iii. 489; Kirk, Students Fl. 288. C. gracilenta, ''Hook. f. Fl. Antarct. i. 35; Fl. Nov. Zel.'' i. 122. Aster Celmisia, ''F. Muell. Fragm.'' v. 84.

33. C. linearis, ''Armstr. in Trans. N.Z. Inst.'' xiii. (1881) 337.—Stems branched at the base; branches short, stout. Leaves numerous, densely crowded, 1–5 in. long, $1⁄20$–$1⁄6$ in. broad, narrow-linear, acute, not pungent, coriaceous, longitudinally grooved and covered with a pellicle of silvery hairs above, clothed with white