cvrEKACEJi. 293 



35 C Za.ntuofhysa. Stem erect, slender, leafy. Fertile spikes 3-4, ovate, 

 remote, |)eduiiciilate. Frui' striate, bifid, horizontal wheti maiurc, tapering 

 into a lon>j acute point. Glunus o\uic, acuminate. 

 '4 June. JSwainps. 2-4 ft. 



(i) Stig^rtdi 3. Fertile spikes on peduncles. 



33 C Flantauinea. Sivm erect, glabrous, with purple sheaths, nearly 

 IcaHess. />'<jr«i linear, nerved, ijlabrous. t?terile spike lerininal ; fertile ones 

 I! ' '■ ' ant, erect, linear, the lower ones on long pcdunciei:. Bracts 

 k .. . iUsj the peduncle. Fruit olilong, cuneiform, recurved at the apex. 



4 April — May. fchaded soils, li-12 in. 



34 C Castanea. iitem 3-angled, slender, purple at the base. LAUiex li- 

 near, shorter tlian the stem. Sterile .-pikes snorter than the bract. Glumes 

 brown, with wiiiie margins Fertile spikes 3, nearly round, the lowest one on 

 a loim peduncle. Puhtt iiithited, wiiii a lojig beak, shining. Fruit 3-angled. 



-I April. Wet pine barrens. 1-2 ft. 



35 C A.NCETs Stem 3-angltd, compressed. Leaves broad. Fertile spikes 

 3, loosely flowered, cylindric. Bracts sheathing. Fruit ovate, 3-angled, 

 acute, narrowed at the base about as long as the glume. 



% April— May, Woods. 12-15 in. 



36 C CoNOiDEA. Stem 3-aiiglcd, the anijles scabrous. Leaves narrow, 

 flat^ scabrous alonjj the margin. Fertile spikes 2-3 remote, the lower ones, 

 on loni" peduncles. Sterile spike terminal, small, with lanceolate glumes, 

 ihe lower bracts leatiike. Fruit conical, obtuse, recurved at the ape.x. 



% April. Wet soils. About 1 ft. 



37 C Tetamca. Stem slender, glabrous, 3-angled. Leaves linear, shorter 

 than the stem. Fertile spikes 2, distant, the upper one nearly sessile, the 

 lower on a Ions peduncle, the sterile spike on a long peduncle. Glume mu- 

 cronate. Frutt ovato-oblong, acute at each end, oblique. 



% May. Wet soils. ~12 in. 



38 C Laxiflora. Stem 3-angled, with scabrous margins. Leaves nar^ 

 row-lanceolate, acute, nerved. Sterile spike nearly sessile ; fertile spikes 2-3, 

 the lowest one on a lon^ peduncle, the upper one, shorter. Glume ovate, cus- 

 pidate. Fruit ovate-oblong, longer than the glume, shining, inflated. 



1\. May. Woods. 12-I8ln. 



39 C Grani'laris- Stem erect, or decumbent, glaucous. Leaves narrow, 

 somewhat glaucous. Sterile spike usually solitary; fertile spikes 2-3, the 

 lowest peJiinciilate, the upper nearly sessile. Olumes ova'e, acuminate. 

 Puled ncnily orbicular. Fruit nerved, with a short, recurved beak. 



% May. Wet shaded soils. 12 in. 



40 C Flexuosa. S/6//1 slender, 3-angied, glabrous. Lea I'es linear, slightly 

 channeled. Sterile spike slender, terminal; fertile spikes 4, pendulous, re- 

 mote, the peduncles sheathed. Glumes lanceolate. Puica- striate- Fruit 

 oblong, beaked, double the lengtii of the glume. 



% April — -May. Damp soils. 12 in. 



(j) Fertile spikes on long jicduncles, nearly destitute of sheathx. 



41 C .MiLiACEA. S/ew slender, 3-ancled, with the angles scabrous. Leaves 

 linear, with scabrous margins, i-'ertife spikes 3, slender, filiform, nitdding. 

 BrarM of the lower spike longer than the stem, those of the upper small. 

 Glumes emarginate. Iruit ovate, 3 angled, with short beak, longer than the 

 glume. 



% May. Wet grounds. 12-15 in. 



42 C HvsTERicfNA. Stem 5-angled, with the angles 8cabrou.<=. Leaves 

 narrow, lonar, scabrous. Sterile spikes cylindrical, with ovate-lanceolate 

 glumes; fertile spikes 3—1, thick, the lower ones on cxserted peduncles. Pa- 

 lea ovale, with a long 2-clefi beak. Glume ovate, terminated by a hispid se- 

 taceous bristle. Brads long. Fruit ovate, ner>'ed, beaked. 



1\. April— .May. Wet soils. 1-2 ft. 



43 C PsECDO-CvpEKUs. Bum erect, acutely 3-angled, scabrous along the 



