Carex. | CYPERACEAE. 253 
Culms very short, 14in. Spikelets 4-5, 3-4 in. long, approxi- 
mate, almost concealed by the leaves. Utricles narrow elliptic- 
ovoid, plano-convex, narrowed into a long acutely bidentate 
beak .. i 7 pr: anh * .. ol. C. cirrhosa. 
* Styles 3. Nut trigonous. (Styles often 2 in C. Berggrent.) 
+ Utricles glabrous (or the margins serrate above), hardly spreading when ripe. 
a. Small species. Oulms 1-6 in. high, overiopped by the leaves. Spikelets 
2-4, closely approximate, often concealed by the leaves. 
Reddish. Culms very short, 1-14 in. Leaves 1-2in. x 7-75 in, 
linear, flat, obtuse. Utricles elliptic, biconvex or obscurely 
trigonous ; margins smooth; beak short. Styles often 2 .. 32. C. Berggrent. 
Green. Culms 1-3in. Leaves j,in. broad, acute. Utricles 
narrow-ovoid, trigonous ; margins serrate ; beak rather long .. 33. C. Hectort. 
Glaucous-green. Culms I-3in. Leaves 2-Gin. X 95-q’5 in. 
Utricles broadiy ovoid, plano-convex ; margins serrate ; beak 
short .. af ts S a = .. 34. C. decurtata. 
Culms filiform, 14-4in. Leaves 4-8 in., very narrow. Utricles 
elliptic, turgid, plano-convex, beak short .. ns .. 3d. C. filameniosa. 
Brownish-red or green. Culms 1-5in. Leaves much longer, 
3-10in. x jj; in.; tips often curled and twisted. Utricles 
elliptic-oblong, trigonous ; margins smooth ; beak very short 36. C. uncifolva. 
b. Slender; culms 6-16 in. high. Leaves narrow, s—5 in. broad, plano- 
conver 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 - wr aes te ss ‘ 
Culms 5-15 in. Leaves with broad sheathing bases, tips curled 
and twisted. Glumes pale. Utricles narrow-ovoid, unequally 
biconvex; margins smooth; beak short .. oF .. 38. C. Petrier 
Culms 6-18 in., filiform. Leaves shorter or longer than the culms. 
Utricles elliptic-lanceolate, plano-convex; margins sharply 
37. O. Dallit. 
serrate; beak long Bi 483 sy ¥ .. 39. C. comans. 
Culms 9-24in. Spikelets 3-5, short, broad. Utricles broadiy 
ovoid, turgid, biconvex; margins smooth; beak short .. 40. C. litorosa. 
c. Tall, stout or slender ; culms 1-8 ft. high or more. Leaves flat or keeled, 
tin. broad. Male spikelets usually. more than one (except in C. dissita). 
Culms stout or slender, 1-24 ft. Leaves }-+in. broad. Spikelets 
4-8, distant, on short peduncles, the lower rarely compound. 
Male spikelet solitary .. a n4 2 .. 41. CO. dissita. 
Culms slender, 2-3 ft., often elongating in fruit. Leaves =4-§ in., 
keeled. Spikelets 5-10, distant ; terminal 2-4 male; female 
slender, pendulous on long filiform peduncles, lower often 
compound ‘4 “IA os rs Me .. 42. C. Solandrt. 
Culms stout. Leaves broad. Spikelets 8; terminal 2-3 male ; ‘ 
females erect on short peduncles, not compound .. .. 43. C. ventosa. 
Culms stout, 2-3ft. Leaves 1-Lin. broad. Spikelets 5-7; 2 
terminal male; female short and stout, }in. diam., the lowest 
remote. Utricles ovoid .. A AY es .. 44. C. longiculmis. 
Culms 11-2ft. Leaves $in. broad. Spikelets 6-7, 1-24 in. 
long, 3 uppermost male. Glumes linear-lanceolate. Utricles 
turgidly biconvex, 2-nerved, beak short .. Ve .. 45. C. Chathamica. 
Culms very tall and robust, 2-4 ft. Leaves 4-}in. broad. Spike- 
lets 6-12, 2-5in. long, very stout; terminal 2-4 male. 
Utricles stipitate, obovoid-oblong i oe .. 46. C. trofida. 
+} Utricles pubescent, hardly spreading when ripe; beak short. Nut with 
a swollen style-base. 
Culms 1-4 in. high, overtopped by the leaves. Spikelets 2-5, 
small, green, closely approximate qe Ps .. 47. C. breviculmis. 
