Page:Manual of the New Zealand Flora.djvu/318

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 * colspan=2|A. Heads large, 1–3 in. diam., solitary or racemed.
 * colspan=2|* Heads radiate, very large, solitary on a long naked peduncle.
 * Leaves 4–6 in. long, oblong or obovate, entire. Heads 2–3 in. diam.||1. O. insignis.
 * colspan=2|** Heads radiate, solitary on bracteate peduncles (racemed in O. Traillii).
 * Leaves 1½–2½ in., linear or linear-lanceolate. Peduncle slender. Rays purple||2. O. semidentata.
 * Leaves 1–3 in., elliptic-lanceolate to oblong-obovate. Peduncles slender. Rays purple or white||3. O. chathamica.
 * Leaves 2–4 in., obovate-lanceolate. Peduncles stout; bracts numerous, short, close-set. Rays white; disc-florets yellow||4. O. operina.
 * Leaves 3–5 in., narrow-lanceolate. Peduncles stout; bracts lax, long, foliaceous. Rays white; disc-florets purple||5. O. angustifolia.
 * Leaves 3–6 in., lanceolate or obovate-lanceolate. Heads racemed. Rays white; disc-florets purple||6. O. Traillii.
 * colspan=2|*** Heads discoid, racemed.
 * Leaves 2–6 in., obovate or obovate-oblong, acutely serrate||7. O. Colensoi.
 * Leaves 4–8 in., orbicular-ovate, doubly crenate||8. O. Lyallii.
 * colspan=2|B. Heads small, $1⁄6$–$1⁄2$ in. diam., panicled or corymbose (solitary in O. nummularifolia). Florets 6–24.
 * colspan=2|* Leaves opposite.
 * Leaves 1½–2½ in., oblong. Panicles axillary. Heads discoid||9. O. Traversii.
 * Leaves 2–4 in., elliptic-lanceolate. Heads radiate||10. O. Buchanani.
 * colspan=2|** Leaves alternate, large, 1½–4 in. long (less in O. suavis), ovate to oblong, more rarely linear-oblong or oblong-lanceolate, entire or toothed or waved.
 * Leaves 2–4 in., ovate-oblong, obtuse, coriaceous, shining beneath. Florets 6–12||11. O. furfuracea.
 * Dwarf shrub. Leaves 1–2 in., oblong-ovate, excessively coriaceous, silvery beneath. Heads ½ in. diam. Florets 15–20||12. O. Alloniii.
 * Leaves 1½–3 in., broadly ovate, acute, rather thin, satiny beneath. Florets 15–20||13. O. nitida.
 * Leaves 2–4 in., broadly ovate, coriaceous, sharply and coarsely toothed||14. O. macrodonta.
 * Leaves 2–4 in., linear-oblong or lanceolate, coriaceous, spinous-toothed||15. O. ilicifolia.
 * Leaves 2–6 in., broadly ovate, rather thin, toothed, white with soft tomentum beneath||16. O. Cunninghamii
 * Leaves 1½–3½ in., oblong-lanceolate, acute, obscurely sinuate-dentate||17. O. excorticata.
 * Leaves ¾–1½ in., linear-oblong or oblong, obtuse, entire or obscurely sinuate||18. O. suavis.
 * colspan=2|*** Leaves alternate, 3–7 in. long, linear or narrow-linear; lateral veins conspicuous beneath, at right angles to the midrib.
 * Leaves 3–7 in., ½–1 in. broad, linear or narrow-linear, ferruginous beneath||19. O. lacunosa.
 * Leaves 5–6 in., ¼ in. broad, very narrow-linear||20. O. alpina.
 * }
 * Leaves 1½–2½ in., oblong. Panicles axillary. Heads discoid||9. O. Traversii.
 * Leaves 2–4 in., elliptic-lanceolate. Heads radiate||10. O. Buchanani.
 * colspan=2|** Leaves alternate, large, 1½–4 in. long (less in O. suavis), ovate to oblong, more rarely linear-oblong or oblong-lanceolate, entire or toothed or waved.
 * Leaves 2–4 in., ovate-oblong, obtuse, coriaceous, shining beneath. Florets 6–12||11. O. furfuracea.
 * Dwarf shrub. Leaves 1–2 in., oblong-ovate, excessively coriaceous, silvery beneath. Heads ½ in. diam. Florets 15–20||12. O. Alloniii.
 * Leaves 1½–3 in., broadly ovate, acute, rather thin, satiny beneath. Florets 15–20||13. O. nitida.
 * Leaves 2–4 in., broadly ovate, coriaceous, sharply and coarsely toothed||14. O. macrodonta.
 * Leaves 2–4 in., linear-oblong or lanceolate, coriaceous, spinous-toothed||15. O. ilicifolia.
 * Leaves 2–6 in., broadly ovate, rather thin, toothed, white with soft tomentum beneath||16. O. Cunninghamii
 * Leaves 1½–3½ in., oblong-lanceolate, acute, obscurely sinuate-dentate||17. O. excorticata.
 * Leaves ¾–1½ in., linear-oblong or oblong, obtuse, entire or obscurely sinuate||18. O. suavis.
 * colspan=2|*** Leaves alternate, 3–7 in. long, linear or narrow-linear; lateral veins conspicuous beneath, at right angles to the midrib.
 * Leaves 3–7 in., ½–1 in. broad, linear or narrow-linear, ferruginous beneath||19. O. lacunosa.
 * Leaves 5–6 in., ¼ in. broad, very narrow-linear||20. O. alpina.
 * }
 * Leaves 2–6 in., broadly ovate, rather thin, toothed, white with soft tomentum beneath||16. O. Cunninghamii
 * Leaves 1½–3½ in., oblong-lanceolate, acute, obscurely sinuate-dentate||17. O. excorticata.
 * Leaves ¾–1½ in., linear-oblong or oblong, obtuse, entire or obscurely sinuate||18. O. suavis.
 * colspan=2|*** Leaves alternate, 3–7 in. long, linear or narrow-linear; lateral veins conspicuous beneath, at right angles to the midrib.
 * Leaves 3–7 in., ½–1 in. broad, linear or narrow-linear, ferruginous beneath||19. O. lacunosa.
 * Leaves 5–6 in., ¼ in. broad, very narrow-linear||20. O. alpina.
 * }
 * colspan=2|*** Leaves alternate, 3–7 in. long, linear or narrow-linear; lateral veins conspicuous beneath, at right angles to the midrib.
 * Leaves 3–7 in., ½–1 in. broad, linear or narrow-linear, ferruginous beneath||19. O. lacunosa.
 * Leaves 5–6 in., ¼ in. broad, very narrow-linear||20. O. alpina.
 * }
 * Leaves 5–6 in., ¼ in. broad, very narrow-linear||20. O. alpina.
 * }