SPECIES AND VARIETIES. 75 



(b) Fruits smooth ; larren spikes terminal, several. 



C. pendula : stems 3-6 feet high ; fertile spikes drooping, 

 4-6 inches long, cylindrical, densely flowered. Damp woods. 

 Fl. May. 



C. glauca: stems \-\\ feet high; fertile spikes two or 

 three, J-l inch long, more or less drooping; fruit slightly 

 scabrous. Damp places. Fl. May, June. 



(c) Fruits downy. 



C. prsecox : stem J-l foot high ; barren spike solitary, 

 fertile spikes one to three, oblong-ovate, near together, ses- 

 sile, or the lowermost sometimes slightly stalked ; lowest bract 

 shortly sheathing, with a leafy point. Dry heaths. Fl. April, 

 May. 



C. pilulifera : stems J-l foot high ; barren spike solitary ; 

 fertile about three, roundish, near together, sessile; lowest 

 bract with a leafy point, sheathless. Wet heaths. Fl. May. 



ft Beak of the fruit long, Z-toothed or bifid ; (nut three- 

 cornered : stiff mas 3). 



J Bracts sheathing, leaf-like ; leak of the fruit plano- 

 convex. 



C. flava : stems 6-12 inches high ; barren spike solitary, 

 cylindrical ; fertile ones about three, roundish-oval, subsessile, 

 near the barren, and often one lower down on a longish stalk. 

 Wet places. Fl. May, June. 



C. sylvatica : stem two feet high ; barren spike solitary ; 

 fertile about four, distant, drooping, linear. Damp woods. 

 Fl. May. 



C. hirta : stem 1 1-2 feet high ; barren spikes two or three : 

 fertile ones two or three, remote, erect, oblong-cylindrical, 

 stalked. Hammer-sedge. Damp places. Fl. April. 



