ftl )NOECIA TRIANDRIA. 



cessiie; sterile spike sessile, (or on a short peduncle;) fruit subglobose, 

 acuminate, bifid, obtusely triangular, hispidly pubescent, as long as 

 the ovate acuminate glume. 



HAB. Rocky woods. April. CulmQ 12 inches high, JHif.;fr.ven- 

 tricose. 



C. marginata : sterile spike pedunculate ; feitile spikes mostly 2, ajj- 

 proximate, subglobose, subsessile; fruit globose, woolly, bidentate. 

 longer than the ovate-oblong glume. 



HAB. Dry woods. April. 8 -12 inches high; sterile spike sub tri- 

 gon. ; glume margined. 



C. vestita : sterile spike mostly solitary (rarely geminate, with the up- 

 per one elongate,) pedunculate, cylindrical-oblong ; fertile 2, ovate-ob- 

 long, sessile, subapproximate, sometimes sterile at the summit ; fruit 

 ovate, subtriquetrous, nerved, with a short rostrum, pubescent, rather 

 longer than the ovate mucronate glume. 



HAB. Wet sandy soil. June. Culm 2 feet high; glume brown ; 

 fr. bidentate. 



C. pubescens : sterile spike subsessile; fertile 3, oblong, erect, rather 

 loosely flowered, the lowest on a short peduncle ; fruit ovate, trique- 

 trous, rostrate, pubescent, orifice nearly entire, as long as the ovate 

 mucronate glume ; leaves and culm pubescent. 



HAB. Woods. May. Culm 12 18 inches high, erect or subdecum. ; 

 leaves pale green. 



C. Jlava : sterile spike on a short peduncle ; fertile mostly 3, ovate, sub- 

 approximate, (the lowest rather remote,) on short included peduncles ; 

 fruit ovate, densely imbricate, bidentate, with a curved and reflexed 

 rostrum, shorter than the ovate-lanceolate glume. 



HAB. Highland meadows. Culm 12 14 inches high, (sometimes 3 

 4 ;) plant yellowish. 



C. tentaculata : fertile spikes 2 3, (rarely 4,) sessile, ovate or ovate- 

 cylindrical, approximate, horizontal ; bracts very long, fruit ovate, ven- 

 tricose, nerved, with a very long rostrum, orifice bidentate, longer than 

 the lanceolate glume. 



HAB. Wet meadows. May June. Culm 12 18 inches high 

 spike very large, thick. 



C. lupulina: sterile spike on a short peduncle, (rarely geminate;) fer- 

 tile 3, subsessile, ovate-oblong, erect, approximate ; bracts very long 

 and leafy ; fruit ovate, irtflexed, nerved, long-rostrate, bicuspidate, 

 much longer than the ovate glume. 



HAB. Swamps. June. Culm 2 3 feet high, thick and leafy ; spike 

 very thick. 



b. polystachia : fertile spikes 5, oblong-cylindric, lowest one remote, on 

 a long peduncle. 



HAB. "Swamps. Culm 2 feet high; spike 2 3 inches long. 



C. folliculata: sterile spike pedunculate; fertile 2, (often solitary,) 

 roundish approximate, few-flowered, upper one sessile, lower one short 

 peduncle ; bracts leafy ; fruit ovate, acuminate-rostrate, ovate, reflexed 

 and diverging, bicuspidate. 



HAB . Swamps. June. Culm 18 ir. ches high ; spike 6 l()-Jlowered , 

 pi. dark green. 



% Pistiliferous spikes on exsert peduncles, partly sheathed at 

 the base. 



C. plantaginea : fertile spikes mostly 4, on peduncles scarcely exserted, 



