GENUS 18. 



SEDGE FAMILY. 



411 



152. Carex assiniboinensis W. Boott. Assini- 

 boia Sedge. Fig. 1019. 



C. assiniboinensis W. Boott, Bot. Qaz. g : 91. 1884. 



Glabrous and nearly smooth, culms slender, weak, 

 aphyllopodic, i-2l high, longer than the leaves, 

 strongly reddened at base. Leaves and bracts V-\' 

 wide, the bracts sheathing; staminate spike long- 

 stalked; pistillate spikes 2 or 3, widely separate, loosely 

 and alternately i-8-flowered, 4"-! 5" long, drooping on 

 filiform stalks or upper erect; perigynia very narrowly 

 lanceolate, appressed, obtusely 3-angled, subulate- 

 beaked above, 3" long and i" thick above the base, 

 densely short-tuberculate-hispid, the beak obliquely cut 

 at orifice ; scales lanceolate, scarious-margined, short- 

 awned, nearly the length of the perigynia; stigmas 3. 



In wet soil, northern Minnesota, North Dakota and 

 Manitoba. May-July. 



153. Carex castanea Wahl. Chestnut Sedge. Fig. 1020. 



Carex castanea Wahl. Kongl. Vet. Acad. Handl. (II.) 24 : 



155. 1803. 

 Carex flexilis Rudge, Trans. Linn. Soc. 7: 98. pi. 10. 1804. 



Culms slender, erect, rough above, i-3 tall, reddish- 

 purple at base. Leaves ii"-3" wide, pubescent, shorter 

 than the culm; bracts linear-filiform, i'-ij' long; stami- 

 nate spike short-stalked; pistillate spikes 1-4, approxi- 

 mate, oblong or oblong-cylindric, many-flowered, i'-i' 

 long, about 3" thick, drooping on filiform stalks, or 

 upper spreading; perigynia glabrous, pale brown, as- 

 cending, oblong or oblong-lanceolate, slightly inflated, 

 3-angled, few-nerved, tapering gradually into a minutely 

 2-toothed beak one-half as long as the body; scales 

 light chestnut, thin, ovate or ovate-lanceolate, acute or 

 cuspidate, lacerate or entire, rather shorter than the 

 perigynia ; stigmas 3. 



In dry thickets and on banks, Newfoundland to Minne- 

 sota, south to Connecticut, New York and the Great Lake 

 region. June-July. 



154. Carex capillaris L. Hair-like Sedge. Fig. 1021. 



Carex capillaris L. Sp. PI. 977. 1753. 



Carex capillaris var. elongata Olney ; 'Fernald, Proc. Am. 

 Acad. 37: 509. 1902. 



Glabrous, culms very slender or filiform, smooth, or 

 a little roughish above, erect, 2 '-20' tall, often densely 

 tufted. Leaves \"-\" wide, much shorter than the 

 culm, flat or somewhat involute in drying ; lower bract 

 similar, the upper much narrower, all sheathing ; spikes 

 all filiform-stalked, the terminal staminate, usually, ex- 

 ceeded by pistillate; pistillate spikes 1-3, narrowly 

 oblong, 2"-6" long, ik" thick, nodding, 2-12-flowered ; 

 perigynia oblong, 3-angled, light green, almost nerveless, 

 about \\" long, rather less than *" thick, the slender 

 beak with oblique, hyaline orifice ; scales ovate, scarious- 

 margined, obtuse or acute, shorter than the perigynia ; 

 stigmas 3. 



Greenland to Alaska, south to Maine, the White Moun- 

 tains, northern New York, Michigan, and in the Rocky 

 Mountains to Colorado and Utah. Also in Europe and Asia. 



