488 THE SEDGE FAMILY. [Caren 
20 f Spikelets short, erect . ees * / 9 (Se 
Spikelets oblong or cylindrical, stalked and drooping < ee 
Spikelets at length rather distant, the lowest nee stalked. Fruit ovoid, 
obtuse 22. C. Buxbaumii. 
et Spikelets close together, ‘the lowest stalked, Fruit angular, shortly Bie gee a 
21 alpina. 
3} ie Spikelets oblong, very black. Fruit triangular, with a short beak 23. C. atrata. 
pee cylindrical, green. Glumes and fruits with long subulate points. 
43. C. Pseudocyperus, 
Spikelets several, one or more terminal ones wholly male. 
93 je eeee Zs 4 : 5 5 : . : . (Ste % : ° . 24 
Stigmas 3. ° sae 
Spikelets small, green, and distant, lower one branched or clustered. 
2a ll. C. axillaris. 
Spikelets cylindrical or oblong, few, dark- poe or black 2 ° ; 
25 f Fruits very convex orinflated . : : ° ‘ . 18. C. saxatilis. 
Fruits nearly flat . . : 
oe mostly obtuse. Spikelets 3 2 to 2 inches long. : . 19. ©. caespitosa. 
26. Glumes mostly narrow and pointed. Female spikelets 3 inches or ae ; 
20 acuta. 
¢ Bracts sheathing, without leafy tips. (Fruits obtuse, slightly downy) . . 28 
? Bracts, at least the lower ones, leafy, with or without sheaths. P . 29 
Stems shorter than the leaves. Female spikelets short, distant, half-included i in 
the sheaths : . 24, C. humilis. 
Stems longer than the leaves. Female spikelets near the top, linear, spreading, 
25. C. digitata. 
Fruits downy orhairy . a : ; ’ . . : : : ‘ 
29») Fruits glabrous : , ‘ 
¢ Female spikelets short and compact, close under the males . : ‘ . 3l 
30) Female spikelets oblong or cylindrical, the lower ones distant . . 33 
¢ Lowest bract shortly sheathing, with a short leafy polit ee C. precox, 
31 2 Lowest bract shortly leafy, without any sheath. . ‘ 32 
Fruits not above a line long, very shortly downy . : ee ‘Gt pilulifera, 
32) Fruits nearly 2 lines long, hairy . ~ © «© « 24. C. montana. 
Bracts without any or with very short sheaths . . o4 
332 Bracts with long SHOaNES: Fruits hairy, beaked, 2 lines ‘long. Spikelets very 
distant . . al. C. hirta. 
Spikelets rather distant, ‘very compact. Fruits “not a line long,a and not beaked. 
. C. tomentosa. 
os Spikelets very distant. Fruits nearly 2 lines long, tapering et a beak. 
30. C. filiformis, 
One terminal male spikelet (rarely with a smaller one close under it), Female 
spikelets erect. Bracts leafy, with sheaths . e 36 
One terminal male spikelet. Females more or less drooping. Bract with or 
354 rarely without sheaths. . . 44 
Two or three male caries Bracts without sheaths, or ‘rarely the lowest one 
sheathing . : : . ° . 49 
( Fruits obtuse, without any or ‘only a very minute beak . ° ° ° . 37 
36 6) Fruits tapering intoabeak . - 38 
(Jena spikelets short, oblong, pale. Fruit very obtuse « ° ; 32. C. pallescens, 
7 
Female spikelets cylindrical. Glumes dark. Fruit often with a minute beak. 
37. C. Rae 
9 
27 
28 
38 ; Female spikelets compact, nearly sessile . ° : . . : , 
( Female spikelets loose, cylindrical, stalked eB . . . 42 
¢ Leafy bracts very narrow, much longer than the stem ° : 33. CO. eee 
39 t Leafy bracts short, or very rarely exceeding the stem 
‘Female spikelets short, elowieli ance mostly near the fon of the stem, 
40 Fruits very spreading. ‘ . C. flava. 
Female spikelets Sune brown, very distant. Fruits with an eee ra slightly 
Spreading beak . : 2 . mene ai . . 
4] Fruit ribbed . 4 - , : 5 : ‘ 35. C.distana, 
i Bruit smooth . . . . 36. C. eee 
42 { Female spikelets green. Fruits with a long beak . : aches 
Female spikelets brown. Fruits with a very short beak 37. C. panicea. 
43 { Peduncles of the lower spikelets very long. : : ; 41. C, sylvatica. 
, Peduncles of the lower spikelets short. . . « - - 385, C. distans. 
