490 THE SBDGB FAMILY. [Car 



30{ 



Fruits downy or hairy ... 80 



Fruits glabrous . 86 



Female spikelets short and compact, close under the males . . .81 



Female spikelets oblong or cylindrical, the lower ones distant 



Lowest bract shortly sheathing, with a short leafy point . 

 Lowest bract shortly leafy, without any sheath . 

 Fruits not above a line long, very shortly downy 

 Fruits nearly 2 lines long, hairy 



26. C.prcecox 

 . 32 



28. C. pUultfera. 

 27. C. montana. 



Bracts without any or with very short sheaths 34 



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



distant 31. C. hirta. 



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



29. C. tomentosa. 

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



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 



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. pattescens. 

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



37. C. panicea. 



Female spikelets compact, nearly sessile 39 



Female spikelets loose, cylindrical, stalked 42 



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



Leafy bracts short, or very rarely exceeding the stem 40 



Female spikelets short, yello wish-green, mostly near the top of the stem. 



Fruits very spreading 34. C. Jlava. 



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



spreading beak 41 



Fruit ribbed 35. C. distant. 



Fruit smooth . 36. C. punctata. 



Female spikelets green. Fruits with a long beak 43 



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



Peduncles of the lower spikelets very long 41. C. sylvatica. 



Peduncles of the lower spikelets short 35. C. distatis. 



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



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. 



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. 



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

 Female spikelets not very distant. Flowers crowded. Stems stout, 8 to 5 ft 48 

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



41. C. sylvatica. 

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



sheaths. Fruits short-pointed . . . . . 42. C. striqosa. 



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



with long points 43. C. Pseudocyperus. 



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



small, scarcely beaked 44. C. pendula. 



Fruits obtuse. Spikelets dark brown. Leaves glaucous . . 40. C. glauca. 

 Fruits beaked or pointed. Spikelets brown-green. Stems tall with long leaves 60 



f Fruit* much flattened, pointed 47. C. paludosa. 



60 < Fruits Inflated, abruptly contracted Into a long beak . 46. C. ampullacea. 

 (Fruits Inflated, tapering Into a short beak .... 46. C. vesicaria. 



1. C. dioica, Linn. (fig. 1111). Diaciout C.A. slender dioecious 



