90 KKPOET OF THE STATE BOTANIST. 



spikes 2-4-, distant, the upper two sessile, the lowest on a short 

 included stalk, densely flowered, 9"-24" in length ; bracts leafy, 

 the lowest sheathing, mostly longer than the culm ; perigynia 

 oblong-ovate, smooth, prominently nerved, 3"-3^" in length, 

 gradually tapering into a long and slender bifurcate beak, the 

 awn-like teeth recurved, a little longer than the ovate-lanceolate, 

 hispidly-awned scale ; achenium elliptical, apiculate, very minutely 

 papillose. 



Ver}^ rare. June. Jefferson county. 



Staminate spike solitary; pistillate spikes cylindrical, pendu- 

 lous; perigynia stipitate, lanceolate, finely and densely nerved, 

 ■with a slender deeply cleft beak, strongly reflexed at maturity. 



Perigynia with long, very strongly recurved teeth . . comosa. 



Perigynia with long straightish or divergent teeth . . Pseudo-Cyperus. 



110. Carex comosa Boott. 



Stems 2°-3° high, robust, erect, acutely angled, flaccid at the 

 base, rough above the middle, smooth below ; leaves surjiassing 

 the culm, 4"-5" broad or more, rough toward the extremities; 

 staminate spike cylindrical, l^'-lf in length, subsessile or short- 

 stalked, with a filiform bract mostly exceeding the culm; 

 pistillate spikes 3-5, l'-2+' long, 5"-7" wide, compactly flowered, 

 the upper two, or sometimes three, approximate, the lowest dis- 

 tant or remote, all on slender pendulous peduncles, frequently 

 sterile at the apex; bracts leafy, sheathless, surpassing the 

 culm; perigynia stipitate, lanceolate, densely nerved, gradually 

 tapering into a long, slender bifurcate beak, the awn-like teeth 

 strongly recurved ; perigynia rellexed at maturity ; scale lanceo- 

 late, bristle-tipped, a little shorter than the perigynium. 



Shores and wet places. Common. July, August. 



The strongly recurved teeth of the reflexed perigynia, the 

 former as conspicuous at the time of flowering as at maturity, 

 are characteristic of this species, which is closely allied to the 

 next following one, of which, by some, it is considered a variety. 



111. Carex Pseudo-Cyperus L. 



Stems 2°-3° high, stout, sharply angled, smooth below the 

 spikes, slightly flaccid at the base; leaves rough, 2"-4:" wide, 

 much surpassing the culm ; staminate spike cylindrical, l^'-2^' in 



