346 CYPERACEAE. 
162. Carex setacea Dewey. Bristly- 
spiked Sedge. (Fig. 832.) 
Carex setacea Dewey, Am. Journ. Sci. 9:61. 1825. 
Carex scabrior Sartw.; Boott, Ill. 3: 125. 1862. 
Culms 14°-4° tall, erect, rough above. Leaves 
1°-2° long, 1/’-3’’ wide, shorter than the culm; 
head narrowly oblong, 114’-214’ long, 3/’-5’’ thick, 
sometimes branched at the base; bracts bristle-like, 
longer than the spikes or shorter; spikes ovoid or 
ovoid-oblong, 214’’-4’’ long, usually close together; 
perigynia lanceolate or ovate-lanccolate, tapering 
from a more or less truncate base to a narrow rough 
2-toothed beak, few-nerved, 1% ’’-114’’ long. 
New York and Massachusetts. Probably of wider 
WA distribution. June-Aug. 
163. Carex Sartwellii Dewey. Sartwell’s Sedge. (Fig. 833.) 
Carex Sartwellii Dewey, Am. Journ. Sci. 43: 90. 1842. 
Culms slender, stiff, erect, rough above, 3-angled 
1°-3° tall. Leaves 1/’-2’’ wide, mostly shorter 
than the culm, long-attenuate at the apex; bracts 
setaceous, usually very small, or 1 or 2 of the lower 
sometimes elongated; spikes ovoid or oblong, 2//— 
4’ long, usually densely aggregated in a narrow 
cluster 1/—2/ long, or the lower somewhat separated; 
staminate flowers terminal or whole spikes oc- 
casionally staminate; perigynia elliptic-lanceolate 
or ovate-lanceolate, about 1’’ long and rather more 
than '4’’ 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 tenélla Schk. Soft-leaved 
Sedge. (Fig. 834.) 
Carex tenella Schk. Riedgr. 23. f. sog. 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. 1-5-flowered, distant or the 
upper close together, the staminate flower or flow- 
ers uppermost; perigynia ovyoid-ellipsoid, nearly 
terete, hard, finely many-nerved, about 1’’ long and 
rather more than %’ 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, Alsoin Europe. June-July. 
/ 
Carex Eleocharis Bailey, Mem. Torr. Club, 1: 6, a very slender erect species, with 2 or 3 small 
brown 1-3-flowered spikes aggregated in a terminal head 114'’-2'’ long, ovoid slightly swollen mar- 
ginless plano-convex short-beaked perigynia, collected by Prof. Macoun on the Saskatchewan 
Plains, probably occurs within the northwestern limits of our area. 
