10. G. collinum, Lab. Pl. Nov. Holl. ii. 44, t. 189.—A tufted perennial herb 3–12 in. high, usually with creeping and rooting stolons and slender erect cottony stems. Leaves mostly radical, very variable in size, ⅓–3 in. long, lanceolate-spathulate or oblong-spathulate, acute or obtuse, petiolate, white and cottony on both surfaces or glabrate above; cauline leaves much smaller and narrower, linear-spathulate, sessile. Heads small, compacted into dense clusters or compound heads similar to those of G. japonicum, but smaller and not so compact, and with fewer smaller subtending floral leaves. Involucres broader than in G. japonicum; bracts linear-oblong, obtuse, scarious and hyaline. Florets and achenes as in G. japonicum.—Hook. f. Fl. Nov. Zel. i. 139; Handb. N.Z. Fl. 155; Benth. Fl. Austral. ii. 654; Kirk, Students' Fl. 300. G. simplex, A. Rich. Fl. Nouv. Zel. 237; A. Cunn. Precur. n. 451.
Var. obscurum, Kirk, Students' Fl. 300.—Forming grey matted patches seldom more than 1 in. high. Leaves ½–¾ in., linear, glabrate above, grey with appressed tomentum beneath. Scape leafy or almost wanting. Heads in terminal fascicles of 2–4 or solitary. Involucral bracts 3–10, linear, obtuse.
Var. monocephalum, Kirk, l.c.—Very small. Leaves all radical, ⅓ in. long, linear, obtuse or acute. Head solitary, sessile or on a slender filiform scape ½–1 in. high.
Kermadec Islands, North and South Islands, Stewart Island, Chatham Islands: Plentiful from sea-level to 4500ft. November–March. The two varieties not uncommon on the mountains of the South Island.
Luxuriant forms of this are best distinguished from G. japonicum by being perennial, by the creeping stolons, smaller glomerules with fewer floral leaves, and by the broader involucres. It is also a native of Australia and Tasmania.
10. RAOULIA, Hook. f.
Perennial herbs, usually of small size, either densely tufted and compacted or creeping and matted. Leaves small, alternate, entire, often closely imbricated. Heads small, solitary, terminal, sessile or nearly so, heterogamous and discoid. Involucre oblong, campanulate or hemispherical; bracts imbricated in 2–3 series, the inner ones often with white radiating tips. Receptacle narrow, flat or convex, naked. Florets of the circumference in 1 or 2 rows, female, filiform, 2–3-toothed. Disc-florets hermaphrodite, tubular with a funnel-shaped 5-toothed mouth. Anthers sagittate at the base, produced into fine tails. Style-branches nearly terete, truncate or subcapitate. Achenes oblong. Pappus-hairs in one or several series, slender or thickened at the tip.
