490 THE SEDGE FAMILY. [Carex. 



9Q / Fruits downy or hairy 30 



zy 1 Fruits glabrous 35 



* J Female spikelets short and compact, close under the males . . . .31 



"i Female spikelets obiong or cylindrical, the lower ones distant . . . .33 

 n, /Lowest bract shortly sheathing, with a short leafy point . . 26. C. prcecox. 



1 Lowest bract shortly leafy, without any sheath 32 



o 9 J Fruits not above a line long, very shortly downy . . .28. C. pilulifera. 



X Fruits nearly 2 lines long, hairy 27. C. montana. 



( Bracts without any or with very short sheaths 34 



33 X Bracts with long sheaths. Fruits hairy, beaked, 2 lines long. Spikelets very 



( distant 31. C. hirta. 



f Spikelets rather distant, very compact. Fruits not a line long, and not beaked. 

 o 4 J 29. C. tomentosa. 



6 | Spikelets very distant. Fruits nearly 2 lines long, tapering into a beak. 



I 30. C. filiformis. 



!One terminal male spikelet (rarely with a smaller one close under it). Female 

 spikelets erect. Bracts leafy, with sheaths ....... 36 

 One terminal male spikelet. Females more or less drooping. Bract with or 

 rarely without sheaths 44 

 Two or three male spikelets. Bracts without sheaths, or rarely the lowest one 

 sheathing 49 



S6 / Fruits obtuse, without any or only a very minute beak 37 



\ Fruits tapering into a beak 38 



(" Female spikelets short, oblong, pale. Fruit very obtuse . . 32: C. pallescens. 

 37 -j Female spikelets cylindrical. Glumes dark. Fruit often with a minute beak. 

 ( 37. C. panicea. 



o 8 ( Female spikelets compact, nearly sessile 39 



\ Female spikelets loose, cylindrical, stalked 42 



oq/ Leafy bracts very narrow, much longer than the stem . . 33. C. extensa. 

 \ Leafy bracts short, or very rarely exceeding the stem . . . . .40 

 f Female spikelets short, yellowish-green, mostly near the top of the stem. 



.r,) Fruits very spreading ." . . . . . . 34. C. flava. 



* u | r 



"{ 



Female spikelets oblong, brown, very distant. Fruits with an erect or slightly 



L spreading beak 41 



' Fruit ribbed . . 35. C distans. 



_ Fruit smooth 36. G. punctata. 



Ma J Female spikelets green. Fruits with a long beak 43 



\ Female spikelets brown. Fruits with a very short beak . . 37. C. panicea. 



4 o J Peduncles of the lower spikelets very long 41. C. sylvatica. 



X Peduncles of the lower spikelets short 35. C. distans. 



.. / Female spikelets short, or very brown (seldom above an inch) . . . .45 



X Female spikelets greenish, 1 to 6 inches long 46 



'Female spikelets light brown, loose. Lower bracts leafy, with long sheaths. 



Fruits beaked 38. C. capillaris. 



Female spikelets pale green, oblong. Lower bracts leafy, with short sheaths. 



45 ! Fruits not beaked 32. C. pallescens. 



| Female spikelets dark brown. Bracts almost without sheaths. Fruits com- 

 pressed, not beaked 39. C. limosa. 



Female spikelets brown, cylindrical. Sheaths variable. Fruits ovoid, not 

 ± beaked 40. C. glauca. 



*q( Female spikelets distant, not crowded. Stems weak and leafy . . .47 

 \ Female spikelets not very distant. Flowers crowded. Stems stout, 3 to 5 ft. 48 

 ( Female spikelets about an inch, on slender stalks. Fruits rather long beaked. 



,»] 41. C. sylvatica. 



1 Female spikelets about 2 inches, very slender. Stalks almost concealed in the 



I sheaths. Fruits short-pointed 42. C. strigosa. 



( Female spikelets about 2 inches, on slender stalks. Glumes and fruits spreading, 



48 ) with long points 43. C. Pseudocyperus. 



J Female spikelets 4 to 6 inches. Stalks almost concealed in the sheaths. Fruits 

 V small, scarcely beaked 44. C. pendula. 



,q( Fruits obtuse. Spikelets dark brown. Leaves glaucous . . 40. C. glauca. 

 X Fruits beaked or pointed. Spikelets brown -green. Stems tall with long leaves 50 

 [ Fruits much flattened, pointed 47. C. paludosa. 



50 < Fruits inflated, abruptly contracted into a long beak . 45. C. ampullacea. 

 ( Fruits inflated, tapering into a short beak . . . . 46. O. vesicaria. 



1. C. dioica, Linn. (fig. 1111). Dioecious O. — A slender dioecious 



