cvrKUACK,!:. (ski)(;e family.) C07 



many-nerved, retwse, the beak short and straight, equalling or exceeding the 

 mostly cuspidate scale. — Supposed to have been collected, a half-century ago, 

 in N. Y. by Torrey, and in I'enn. i)y Schwcinitz. It «»<iurs in the Kocky 

 Mountain region, and high northward. 



* G. DaC'TVLOStXcHY.I;. — +- 1. Olif/ocdrjxr. 

 H-i- Sheaths smooth. 



65. C. COnoidea, Sclikuhr. Slender but strict, 1 - U'^ high; staminate 

 sj)ike long-peduncled or rarely nearly sessile ; spikes 2-3, scattered, short- 

 stalked or the upper one sessile (the lowest frequently very long-stalked), ol> 

 long (rarely 1' long) and rather loosely flowered, erect; perigynium oblong- 

 conical, impressed-nerved, gradually narrowed to a point, the orifice entire; 

 scale loosely spreading and rough-awned, c(pialling or exceeding the perigyn- 

 ium. — Moist grassy places, N. Eng. to 111., and southward; rare westward. 



66. C. oligocarpa, Sclikuhr. Diffuse, 10-18' high; bracts flat and 

 spreading; staminate spike sessile or stalked; spikes 2-4, scattered, stalked 

 or the uppermost sessile, loosely 2 - 8-flowered, erect ; perigynium smpJl, hard, 

 finely impressed-nerved, abruptly contracted into a conspicuous mostly oblique 

 beak, the orifice entire ; scale very loosely spreading and rough-awned, longer 

 than the perigynium. — Dry woods and copses, W. New Eng. to Mo., and 

 southward ; rare westward. Often confounded with small forms of n. 58. 



++ ++ Sheaths pubescent. 



67. C. Hitchcockiina, Dewey. Erect, U-20 high; spikes 2-4, all 

 more or less peduncled, very loosely few-flowered, erect ; perigynium trian- 

 gular-ovate, many-striate, the strong beak prominently oMique, shorter than 

 the rough-aAvned scale. — Rich Avoods, W. New Eng. to 111., and southward to 

 Penn. and Ky. ; frequent. 



* 6. — M- 2. La XI florae. 



++ Sheaths (jrcen. 

 = Perigi/nium mostlij obscureli/ triangular, the beak veri/ prominent. 



68. C. Iaxifl6ra, Lam. Slender but mostly erect, 1 - 2° high ; leaves 

 rarely over 2" wide, rather soft ; staminate spike peduncled or at least con- 

 spicuous; pistillate spikes 2-4, scattered, peduncled or the upper one sessile, 

 loosely flowered, cylindric or sometimes reduced to slu)rt-oblong, erect or the 

 lower loosely spreading; perigynium obovate, conspicuously nerved, the short 

 entire beak much bent or recurved ; scale thin and white, blunt or cuspidate, 

 mostly shorter than the perigynium. — Grassy places, throughout ; common. 

 Exceedingly variable. — Var. vXuiaxs, Bailey. Mostly stouter than the tvpe, 

 the leaves broader; pistillate spikes ^^-I'long, the two upper more or less 

 contiguous to the staminate spike and sessile or nearly so; bracts leafy and 

 prolonged. — Copses and gra.ssy places, throughout ; common. Counterfeits 

 var. patulifolia. — Var. STni.ixi-LA, Carey. Diffuse; ])istillate spikes rarelv 

 over V long, the upper sessile and aggregated about the inconspicuous stami- 

 nate spike, the lowest usually long-exserted. Grassy places, throughout ; very 

 common. — ^^a^. latif6i.ia, Boott. Rather low; leaves ^' broad or more; 

 5taminate spike sessile or very nearly so; pistillate spikes cylindric and loose, 

 the upper one or two contiguous ; bracts very broad. Deep rich woods, E. 

 Mass. (Deane) to Penn. and Mich.; common westward. — Var. patulifolia, 



