300 CYPERACEAE. | 
25. Carex Schweinitzii Dewey. Schweinitz’s Sedge. (Fig. 695.) 
Carex Schweinitzii Dewey; Schwein, Ann. Lyc. N. 
Meteyx, tS2ds 
Glabrous, light green, culm erect, roughish 
above, 1°-2%4° tall. Leaves elongated, 2'4’/-4/’ 
wide, the basal ones and the similar bracts com- 
monly overtopping the culm, those of the culm 
mostly shorter; staminate spike solitary or some- 
times 2, often pistillate at the base or in the mid- 
dle; pistillate spikes 3-5, ascending, linear-cylin- 
dric, not very densely flowered, 114’-3’ long, 
about 4’ thick, the upper usually sessile, the lower 
stalked; perigynia thin, somewhat inflated, oyoid- 
conic or oblong, tapering into the subulate, 2- 
toothed beak, about 214’ long and 1’ in diameter, 
: ascending, rather prominently few-nerved, equal- 
ling or the upper longer than the lanceolate or 
linear, usually ciliate-scabrous scale; stigmas 3. 
In swamps and bogs, Massachusetts to Ontario, 
Michigan, New Jersey and Missouri. June-Aug. 
26. Carex hystricina Muhl. Porcupine Sedge. (Fig. 696. ) 
Carex hystricina Muhl.; Willd. Sp. Pl. 4: 282. 1805. 
Glabrous, light green, culms slender, erect or reclining, 
somewhat rough above, 1°-2° tall. Leaves elongated, 
minutely scabrous, 1 4’’-214’’ wide, the upper and the 
similar bracts overtopping the culm; staminate spike slen- 
der-stalked, sometimes pistillate at the summit; pistil- 
late spikes 1-4, oblong-cylindric, densely many-flowered, 
¥4/-1 4’ long, about 41%4’’ in diameter, the upper sessile 
or nearly so, the lower slender-stalked and drooping; 
perigynia ascending, somewhat inflated, ovoid-conic, 
214/’-3’ long, strongly many-nerved, tapering into the 
subulate 2-toothed beak, equalling or the upper longer 
than the narrow rough scales; stigmas 3. 
In swamps and low meadows, Nova Scotia to the North- 
west Territory, south to Georgia and Nebraska. June-Aug. 
Carex hystricina Dudleyi Bailey. Mem. Torr. Club, 1: 54. 
1889. 
Culms often reclining, 2°-3° long; leaves 2's''-4'’ wide; 
staminate spike long-stalked; pistillate spikes 114/-21s' 
long, 5’’ in diameter, filiform-stalked. Maine to Connecticut, 
western New York, Pennsylvania and Michigan. 
27. Carex Psetdo-Cypérus I,. Cyperus-like Sedge. (Fig. 697.) 
Carex Pseudo-Cyperus I,. Sp. Pl. 978. — 1753- 
fp 
fy Glabrous, culms rather stout, rough on the sharp 
Y angles, at least above, 2°-3° high. Leaves elon- 
gated, rough on the margins, nodulose, 2'%’/-5’’ 
wide, the upper and the similar bracts overtopping 
the culm; staminate spike short-stalked; pistillate 
spikes 2-5, linear-cylindric, densely many-flowered, 
all slender-stalked and spreading or drooping, 1/— 
214’ long, 3/’-4’’ in diameter, the stalk of the low- 
est one sometimes 2’ long; perigynia light green, 
slightly inflated, conic, prominently many-ribbed, 
somewhat flattened, at length reflexed, tapering 
into a short 2-toothed beak, the short teeth slightly 
spreading; scales linear with a broad base, ciliate- 
scabrous, about equalling the perigynia; stigmas 3. 
In bogs, Nova Scotia to Manitoba, Maine, New York, 
and Michigan. Also in Europe and Asia. June-Aug. 
