cypebacejE. 424 



oblonor-mucronate glume ; stem 6 — 12 inches high ; leaves flat and shorter 

 towards the base ; plant light green. Open woods or hedges — rare ; differs 

 from the following species in its fruit and pubescence. 

 85. C. HiTcircocKiANA. DciP. 



Staminate spike erect, pedunculate ; pistillate spikes 2 — ;?, erect, few-flower- 

 ed, lowest distant ; perig. oval triquetrous, tapering at both ends, inflated, 

 alternate, bent at the apex, striate, with a short, truncated and open beak, 

 about equaling or shorter than the oblong or ovate, nuicronate glume ; stem 

 10 — 24 inches high, erect, stitF, scabrous above, with long and leafy bracts ; 

 stem leaves a7id hracts scahrous and subpubescent. Borders of woods. Can- 

 not be the C. oligucarpa figured by Schkuhr. 

 SG. C. LAXiFLOKA. Lam. 



Staminate spike oblong, slender; pistillate spike 2 — 4, oblong, lax-flowered, 

 few-flowered, erect, remote ; perig. ovate or oblong-ovate, obtusish, glabrous, 

 ventricose, nerved, subtriquetrous, entire at the mouth, a little longer than 

 the ovate scabro-mucronate glume; stem 10 — 18 inches high, triquetrous, 

 leafy. Bright, to pale green. Woods, hedges and meadows. Common. 



87. C. GRANULARIS. Mu/l. 



Pistillate spikes 2 — 4, cylindric, oblong, dense-flowered, suberect ; perig. 

 roundish-ovate, nerved, very short-beaked and recurved, entire at the orifice, 

 nearly twice as long as the ovate-acuminate glume ; stem 8 — 16 inches high, 

 erect or subdecnmbent, smooth, leafy. Glaucous green except the mature 

 yellow spikes. Moist soils in meadows and hedges, along brooks. Abundant 



88. C. PANICEA. L. 



PisLillate spikes 2 — 3, loose-flowered, remotish, lowest long pedunculate ; 

 perig. subglobose, obtuse, entire at the mouth, a little greater than the ovate, 

 subacute glume ; stem a foot high, triquetrous, leafy at the base; leaves shorte? 

 than the stem. Light green. Near Boston. Pickering. 



89. C. BiNERVis. Smith. 



Pistillate spikes 3, oblong, cylindric, subdense-flowered ; perig. ovate, round, 

 short-rostrate, biouspidate, smooth, binerved, twice longer than the ovate, 

 subacute glume ; stem a foot high or more, triquetrous, leaty towards the base. 

 Pale green. Near Boston. B. D. Greene. 



90. C. Greeniana. Dew. 



Staminate spike one and erect, sometimes 2; pistillate spikes 2 — 3, oblong, 

 bracteate, pedunculate ; perig. ovate-lanceolate, triquetrous, nerved, rostrate, 

 bifurcate, subdense-flowered, about equal to the ovate, cuspidate glume; stem 

 ] — 2 feet high, scabrous above, leafy towards the base. Light green. Re- 

 sembles C. pelva, Good., but differs in its fruit and glume. Near Boston. 

 B. D. Greene. Rare. 



91. C. Grayana. Dejo. 



Staminate spike oblong ; pistillate spikes 2 — 3, oblong-cylindric, subloose- 

 flowered ; perig. ovate-oblong, subtriquetrous, subinflated, obtuse or acutish, 

 entire at the orifice, longer than the obtuse, oblong glume ; stevi G — 16 inches 

 high, erect, triquetrous, striate, with leaves about its own length. Glaucous 

 green. Sphagnous swamp near Utica, N. Y. Gray. Cedar swamp, N. J. 

 Torrey ; has been supposed to be C. livida. Wahl., from which it differs in 

 several respects. 



92. C. Halseyana. Dew. 



Staminate spike oblong, erect, sessile, often 2, approximate ; pistillate spikes 

 1 — 2, oblong, cylindric, erect, loose-flowered, sometimes staminate above; 

 perig. ovate, short-rostrate, subtriquetrous, inflated, glabrous, oblique at the 

 orifice, a little longer than the ovate, subacute glume ; stem 1 — 2 feet high, 

 acutely triquetrous; leaves linear-lanceolate, shorter towards the base. Dark 

 green. Upland meadows. Westfieid,Ms. Davis ; ^\B.ins oi N . J . Kneiskern. 



