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Manual of the New Zealand Flora.

8. Haastia, Hook. f

8. Haastia, Hook. f.

Densely or laxly tufted perennial herbs, often forming large rounded or amorphous masses in alpine localities; root stout, branched, often very long; branches hard and woody, altogether concealed by the persistent leaves. Heads large, solitary at the tips of the branches, sessile and sunk among the uppermost leaves. Involucre hemispherical or broadly campanulate; bracts in about two series, linear, with scarious tips, the inner usually narrower, almost glabrous, the outer broader, densely woolly. Receptacle flat, papillose. Outer florets numerous, female, in 2 or several series; corolla very short, slender, narrow-tubular, minutely 5-toothed; style-branches long, far-exserted. Disc-florets numerous, hermaphrodite, funnel-shaped, 5-toothed; style-branches not so long. Achene linear-oblong, glabrous, subterete, smooth or obscurely grooved. Pappus - hairs of one series of numerous rather rigid bristles, thickened at the tips.

A very remarkable and distinct genus, confined to New Zealand.

Forming compact pulvinate masses. Leaves most densely imbricate, broadly obcuneate, crenulate at the tip 1. H. pulvinaris
Laxly branched, rufous or fulvous. Leaves loosely imbricated, obovate-spathulate, sharply recurved. Heads ½–¾ in. 2. H. recurva.
Laxly branched, whitish or pale fulvous. Leaves loosely imbricated, oblong - obovate, flat, suberect. Heads ¾–1¼ in. 3. H. Sinclairii.
Small, densely tufted, fulvcus. Leaves densely imbricated, obovate-cuneate, clothed with long straight hairs 4. H. Greenii.
1.H. pulvinaris, Hook. f. Handb. N.Z. Fl. 156.—Forming large rounded or amorphous cushion-like masses 3–6 ft. diam. or more. Root long, stout, branched. Branches numerous, densely compacted, with the persistent leaves ¾ in. diam. Leaves spreading, most closely imbricated, thickly clothed with pale fulvous wool, especially towards the tips, ⅓–½ in. long, broadly obcuneate, gradually narrowed to a broad sessile base, membranous below, tip thickened and provided on the upper surface with numerous fleshy projections, giving it a crenulate appearance, 3-veined when the wool is removed, veins anastomosing above. Head ⅓ in. diam.; in-volucral bracts in 1–2 series, narrow-linear, free. Achene linear-oblong, glabrous, not ribbed. Pappus - hairs free at the base.—Ic. Plant, t. 1003; Kirk, Students' Fl. 295.

South Island: Nelson—Summit of Gordon's Nob, T. F. C.; mountains above the Wairau Gorge, Sinclair, T. F. C.; Discovery Peaks, Travers; Mount Captain, Kirk! T. F. C.; Lake Tennyson, T. F. C. Marlborough—Mount Mouatt, Awatere, Sinclair, Kirk! Kaikoura Mountains, Buchanan! 4000–6500 ft. Vegetable sheep. December–January.

One of the most remarkable plants known. The branches are everywhere covered and altogether concealed by the densely imbricated woolly leaves, and are so closely compacted that it is impossible to thrust the finger in between. In page 321fact, the whole plant has the appearance of a woolly cushion marked with mamillated projections corresponding to the tips of the branches. The flower-heads are sunk in the top of these projections, and are almost hidden by the woolly hairs of the leaves. For a detailed account of the vegetative organs of the plant, and its minute anatomy, reference should be made to a paper by Miss E. Low in the Trans. N.Z. Inst. xxxii. 150.

2.H. recurva, Hook. f. Handb. N.Z. Fl. 156.— Forming laxly branched masses 3–9 in. broad, everywhere covered with soft dense fulvous or rufous wool; branches spreading, open, with the leaves ½–¾ in. diam. Leaves laxly imbricating, in. long, obovate or obovate-spathulate, sharply recurved about, the middle; the lower half loosely sheathing the branch, thin and membranous, veined, clothed with long woolly hairs; the upper half thicker, with the superior surface much puckered and wrinkled, with correspond ing reticulations beneath, both surfaces covered with densely com pacted wool. Heads ½–¾ in. diam.; involucral bracts in one series, linear, erect, densely woolly on the outside, glabrous within. Achene glabrous, not ribbed. Pappus-hairs free or very obscurely connate at the base.—Kirk, Students' Fl. 296.

South Island: Nelson—Mount Peel, T. F. C.; Wairau Gorge, Sinclair T. F. C.; Discovery Peaks, Travers; Clarence Valley, T. F. C. Marlborough —Kaikoura Mountains, Buchanan! Canterbury—Mount Torlesse and mountains of the Broken River basin, Haast, Enys! Petrie! Cockayne! T. F. C.; Mount White, Armstrong! Usually on dry shingle slopes. 4000–6500 ft. December–January.

3.H. Sinclairii, Hook. f. Handb. N.Z. Fl. 156. —Loosely tufted, much or sparingly branched, often simple. Branches de cumbent or suberect, 3–9 in. long. Leaves erect or rarely spreading, laxly imbricating, ½–¾ in. long, oblong - obovate or rounded-obovate, flat, everywhere densely clothed with white or pale fulvous wool, thin and membranous towards the base, 5–7-veined when the wool is removed, upper portion thicker and slightly rugose. Heads large, ¾–1¼ in. diam.; involucral bracts in 2 series, with scarious tips, linear or linear-obovate, outer densely woolly, the inner nearly glabrous. Achene linear - oblong, smooth and glabrous, not ribbed. Pappus-hairs free to the base.—Ic. Plant. t. 1003; Kirk, Students' Fl. 296. H. montana, Buch, in Trans. N.Z. Inst. xix. (1887) 215.

South Island: Not uncommon on dry shingle slopes in alpine localities from Nelson to the west of Otago. 4000–6500 ft. December–January.

Allied to the preceding, but distinguishable by the less-branched habit, paler wool, flat leaves, and larger heads.

4.H. Greenii, Hook. f. ex T. Kirk Students' Fl. 296.— "Densely tufted, about 2 in. high; stems with the leaves ⅓ in. diam. Leaves densely imbricating all round the stem, ⅕ in. long, obovate-cuneate, rounded at the tip, thickly clothed on both surfaces with long straight hairs which meet beyond the margin and completely hide the leaves. "Flowers unknown." page 322

South Island: Canterbury—Mount Cook, alt. 6500 ft., Rev. W. S. Green.

This is quite unknown to me, and in the absence of additional information I have reproduced Mr. Kirk's description. It was discovered during the Rev. W. S. Green's adventurous ascent of Mount Cook, and has not since been met with.