CYPERACEAE. 



162. Carex setacea Dewey. Bristly- 

 spiked Sedge. (Fig. 832.) 



Carex setacea Dewey, Am. Journ. Sci. 9: 61. 1825. 

 Ca re.v scabrior Sartw.; Boott, 111. 3: 125. 1862. 



Culms i^-4 tall, erect, rough above. Leaves 

 i-2 long, i // -3 // wide, shorter thau the culm; 

 head narrowly oblong, i %'-*%' long, 3 "-5" thick, 

 sometimes branched at the base; bracts bristle-like, 

 longer than the spikes or shorter; spikes ovoid or 

 ovoid-oblong, 2^ // -4 // long, usually close together; 

 perigynia lanceolate or ovate-lanceolate, tapering 

 from a more or less truncate base to a narrow rough 

 2-toothed beak, few-nerved, 1%"-!%" long. 





New York and Massachusetts, 

 distribution. June-Aug. 



Probably of wider 



(Fig. 833.) 



163. Carex Sartwellii Dewey. Sartwell's Sedge. 



Carex Sartii'dlii Dewey, Am. Journ. Sci. 43: 90. 1842. 

 Culms slender, stiff, erect, rough above, 3-angled 

 i-3 tall. Leaves \" 2" wide, mostly shorter 

 than the culm, long-attenuate at the apex; bracts 

 setaceous, usually very small, or i or 2 of the lower 

 sometimes elongated; spikes ovoid or oblong, 2"- 

 4" long, usually densely aggregated in a narrow 

 cluster i / -2 / long, or the lower somewhat separated; 

 staminate flowers terminal or whole spikes oc- 

 casionally staminate; perigynia elliptic-lanceolate 

 or ovate-lanceolate, about i" long and rather more 

 than y 2 " wide, ascending, strongly several-nerved 

 on both faces, tapering into a short 2-toothed 

 beak; scales ovate, obtuse or subacute, pale brown, 

 scarious-margined, about equalling the perigynia; 

 stigmas 2. 



In swamps, Ontario to British Columbia, south to 

 central New York, Illinois, Michigan, Arkansas and 

 Utah. May-July. 



164. Carex tenella Schk. Soft-lea- 

 Sedge. (Fig. 834.) 



Carex tenella Schk. Riedgr. 23. f. 104. 1801. 



Light green, rootstocks very slender, culms al- 

 most filiform, rough, commonly reclining, 6'-2 

 long. Leaves soft, about >" wide, spreading, 

 shorter than or sometimes equalling the culm; 

 spikes very small, only i-5-flowered, distant or the 

 upper close together, the staminate flower or flow- 

 ers uppermost; perigynia ovoid-ellipsoid, nearly 

 terete, hard, finely many-nerved, about i" long and 

 rather more than W thick, tipped with a very 

 minute entire beak; scales ovate, hyaline, acute, 

 shorter than or the lower equalling the perigynia; 

 stigmas 2. 



In bogs, Newfoundland to British Columbia, south 

 to New Jersey, Pennsylvania, Michigan, Colorado and 

 California. Also in Europe. June-July. 

 Carez Eleocharis Bailey, Mem, Torr. Club, i: 6, a very slender erect species, with 2 or^j small 

 brown i-vflowered spikes aggregated in a terminal head i l A"-z" long, ovoid slightly swollen mar- 

 ginless piano-convex short-beaked perigynia, collected by Prof. Macoun on the Saskatchewan 

 Plains, probably occurs within the northwestern limits of our area. 



