KEPOKT OF THE STj.Tii BOTANIST 183 



nerved, slightly turgid, scabro-pubescent, contracted into a short 

 obliqaely toothed beak, exceeding the ovate acute or cuspidate 

 brown scale ; achenium obovate, acutely triangular. 



Scattered or in patches along streams and in wet places. 

 Common. June. 



A rather coarse but bright-green species with the fertile spikes 

 of a bristly or squarrose appearance when mature. It is some- 

 what stoloniferous. 



100. Carex filiformis L. 



Stems l°-3° high, slender, erect, obtusely augled, mostly 

 smooth ; basal bracts l'-2|-' in length, pointed, purplish-brown, 

 more or less fibrillose ; leaves l"-ly" wide, carinate, prominently 

 grooved, smooth, rough margined, becoming doubled or involute 

 when dry, shorter than the culm, the radical ones numerous and 

 longer; staminate spikes 1-3, rarely 4, clavate or cylindrical, 

 l'-2' in length, on a slender peduncle l'-2|-' long, subtended by a 

 scale-like, bristle-tipped, or short setaceous bract; pistillate spikes 

 1-4, usually 2, cylindrical, densely flowered, or somecimes loosely 

 at the base, subdistant or remote, sessile, or the lowest short- 

 stalked, often staminate at the apex, \'-\\' in length ; perigynia 

 obtusely triangular, ovoid, nerved, of a thick coriaceous texture, 

 densely pubescent or tomentose, slightly inflated, contracted into 

 a short, sharply toothed beak, mostly covered by the ovate 

 lanceolate, pointed or rough cuspidate brown scale, the latter 

 usually widely spreading at maturity. 



Swamps and wet meadows. Common. June, July. 



This species may be recognized by the long sterile, and gray- 

 ish fertile spikes, and by the usually erect, narrow, carinate 

 leaves. It seems to prefer cold elevated swamps and bogs, 

 though by no means limited to them. 



101. Carex lanuginosa Mz. 



Stems l°-2° high, stout, erect, acutely angled, roughish above 

 the middle; root stock somewhat cree])ing; leaves open and Hat, 

 smooth, 1"-1^ ' wide, shorter thai the culm ; staminate spikes 

 1-3, \'~\\' long, on stiff peduncles A'-lo-' in length; pistdlate 

 spikes 2-4, \'-V in length, 2V'-ci" thick, densely llowered, cylin- 

 drical, the uppermost usually sessile, the lower distant on short 

 stalks, or the lowest remote on a slender peduncle I'-l^-' long, 



