Page:Manual of the New Zealand Flora.djvu/403

Abrotanella.] long, narrow-linear, acute, curved, rigid, coriaceous, flat above, midrib prominent beneath. Head solitary, J^in. diam., sunk amongst the uppermost leaves; involucral bracts linear, obtuse, coriaceous, nerved. Style of the disc-florets bifid. Achenes of the female florets linear-clavate, 4-angled.—Kirk, Students' Fl. 332. Trineuron pusillum, ''Hook. f. Fl. Nov. Zel.'' i. 131.

7. A. muscosa, ''T. Kirk in Trans. N.Z. Inst.'' xxiv. (1892) 422, t. 36.—Stems very minute, ⅕–¼ in. high, either solitary or forming dense patches ½–1 in. diam. Leaves closely imbricating, erect, $1⁄8$–$1⁄7$ in. long, linear or linear-oblong, truncate or retuse at the tip; upper half excessively coriaceous and rigid, somewhat concave, margins much thickened and cartilaginous; lower half membranous, sheathing. Heads minute, solitary, concealed amongst the uppermost leaves; involucral bracts 5, oblong, obtuse or acute or apiculate, nerveless or nearly so. Florets 4–8; females narrow, cylindrical, obscurely toothed at the mouth; disc-florets tubular, 4-toothed. Achenes oblong, truncate above, setose, obscurely tetragonous, with a long bristle at each angle.—Students Fl. 332.

Erect annual or perennial herbs, cottony or glabrous. Leaves alternate, toothed or lobed or pinnately divided, rarely entire. Heads narrow, in terminal corymbs, heterogamous and discoid. Involucre cylindric; bracts in 1 series, linear, equal, appressed, sometimes with a few small ones at the base. Receptacle flat, naked. Female florets in 2–3 rows at the circumference, very slender, filiform, minutely 3–5-toothed. Disc-florets hermaphrodite, fewer in number than the females, tubular with a broad 5-toothed mouth. Anthers obtuse at the base. Style-branches of the disc-florets elongated, truncate at the tip. Achenes linear-oblong, obtuse or contracted towards the apex, striate or angular. Pappus-hairs in many series, copious, soft, excessively slender.