Page:Manual of the New Zealand Flora.djvu/848

Culms reddish, densely tufted, 1–2 ft. Leaves strict, semiterete. Spikelets 4–6, ½–1½ in. long. Glumes pale. Utricles elliptic, plano-convex; margins serrate	28. C. Buchanani.
Culms very short, 1–4 in. Spikelets 4–5, ⅕–⅓ in. long, approximate, almost concealed by the leaves. Utricles narrow elliptic-ovoid, piano convex, narrowed into a long acutely bidentate beak	28. C. cirrhosa.
Culms very short, 1–4 in. Spikelets 4–5, ⅕–¼ in. long, closely approximate. Utricles elliptic-ovoid, turgid, unequally biconvex; beak very short	30. C. rubicunda.
* Styles 3. Nut trigonous. (Styles often 2 in C. Berggreni.)
† Utricles glabrous (or the margins serrate above), hardly spreading when ripe.
a. Small species. Culms 1–5 in. high, overtopped by the leaves. Spikelets 3–4, closely approximate, often concealed by the leaves.
Reddish. Culms very short, ½–1½ in. Leaves 1–2 in. × 1/15–1/12 in., linear, flat, obtuse. Utricles elliptic, biconvex or obscurely trigonous; margins smooth; beak short. Styles often 2	31. C. Berggreni.
Green. Culms 1–3 in. Leaves 1/20 in. broad, acute. Utricles narrow-ovoid, trigonous; margins serrate; beak rather long	32. C. Hectori.
Glaucous-green. Culms 1–3 in. Leaves 2–6 in. × 1/30–1/15 in. Utricles broadly ovoid, plano-convex; margins serrate; beak short	33. C. decurtata.
Brownish-red or green. Culms 1–5 in. Leaves much longer, 3–10 in. × 1/30–1/15 in.; tips often curled and twisted. Utricles elliptic-oblong, trigonous; margins smooth; beak very short	34. C. uncifolia.
b. Slender; culms 6–16 in. high. Leaves narrow, 1/30–1/12 in. broad, plano-convex or nearly so. Male spikelets solitary.
Culms 4–10 in. Leaves usually shorter, narrow. Spikelets 3–5, distant. Utricles narrow-ovoid, trigonous; margins smooth; beak short	35. C. Dallii.
Culms 5–15 in. Leaves with broad sheathing bases, tips curled and twisted. Glumes pale. Utricles narrow-ovoid, unequally biconvex; margins smooth; beak short	36. C. Petriei.
Culms 6–18 in., filiform. Leaves shorter or longer than the culms. Utricles elliptic-lanceolate, plano-convex; margins sharply serrate; beak long	37. C. comans.
Culms 4–9 in. Leaves much longer, 12–20 in. Spikelets 5–6, closely approximate, pale. Utricles elliptic-ovoid, unequally biconvex; margins smooth; beak rather long	38. C. plesiostachys.
Culms 9–24 in. Spikelets 3–5, short, bread. Utricles broadly ovoid, turgid, biconvex; margins smooth; beak short	39. C. litorosa.
c. Tall, stout or slender; culms 1–3 ft. high or more. Leaves flat or keeled, ⅛–½ in. broad. Male spikelets usually more than one (except in C. dissita).
Culms stout or slender, 1–2½ ft. Leaves ¼–⅓ in. broad. Spikelets 4–8, distant, on short peduncles, the lower rarely compound. Male spikelet solitary	40. C. dissita.