1S2 



NEW YORK STATE MUSEUM 



drooping stalks J'-l' in length, the lowest distant and pendulous ; 

 bracts variable, the lowest leafy, 2 / -3 / long, sheathing, the upper 

 setaceous ; perigynia ovate-lanceolate, long, turgid, 2-ribbed, 

 obscurely nerved, spreading, tapering into a long smooth or 

 roughisb, mostly entire beak, about one- third longer than the 

 acute, fringed, brown, scale. 



Yery rare. May, June. Oneida and Herkimer counties. 



Well marked by its glaucous leaves, and its short, yellowish or 

 brown spikes, the upper subtended by setaceous bracts. This 

 is C. flexilis Radge in the older botanies. 



Perigynia moderately inflated. 



Staminate spikes 1-4, the terminal stalked ; pistillate spikes 

 2-5, sessile or short- stalked (the lower ones long-stalked in 99), 

 approximate or distant, ovoid, oblong or cylindrical ; bracts leafy ^ 

 longer or shorter than the culm ; perigynia ovoid or oblong- 

 conic, nerved, smooth or pubescent, somewhat coriaceous in tex- 



ture, with a short bifid beak. 



Perigynia scabro-pubescent scabrata. 



Perigynia smooth or granular, pistillate spikes distant, 



purple polymorpha. 



Perigynia pubescent 1 



Perigynia smooth or slightly rough, spikes not purple. . 2 



1 Pistillate spikes cylindrical, leaves involute filiformis* 



1 Pistillate spikes cylindrical, leaves not involute 3 



3 Leaves and bracts exceeding the culm lanuginosa. 



3 Leaves and bracts shorter than the culm 4 



4 Spikes ovoid or oblong, approximate vestita. 



4 Spikes oblong-cylindrical, distant Houghtonii 



2 Pistillate spikes 6 // -12 // long, 2 // -4 // wide, leaves involute, striata. 



2 Pistillate spikes 2-3' long, ±"-h" wide, leaves flat. . . . riparia. 



99. Carex scabrata Schw. 



Stems l°-2° high, rather stout, rough on the angles; leaves 

 numerous, the upper ones surpassing the culm, 2"-3" wide, rough, 

 light-green ; staminate spike clavate, 6"-9" long, its peduncle 

 2 /, -6 // in length ; pistillate spikes 3-5, cylindrical, densely flowered 

 above, thinly at the base, approximate or scattered, the upper 2: 

 sessile and erect, the others on erect or spreading stalks i / -2^ / in 

 length ; bracts leafy, sheathless or sometimes the upper ones 

 short-filiform, the lowest surpassing the culm; perigynia ovoid,. 



