318 CYPERACEAE. 
79. Carex oxylepis Torr. & Hook. Sharp-scaled Sedge. (Fig. 749.) 
Carex oxylepis Torr. & Hook. Ann, Lyc. N. Y. 3: 409. 
1836. 
Culms slender, smooth, erect, 1°-2° tall. Leaves 
flat, 144’’-3’ wide, pubescent, especially on the 
sheaths, shorter than or equalling the culm, the 
lower bract similar but narrower; spikes 4 or 5, 
linear-cylindric, 1/-2’ long, about 2’’ in diameter, 
rather densely many-flowered, filiform-stalked and 
at maturity spreading or drooping, the terminal 
one staminate at the base or sometimes wholly 
staminate; perigynia oblong, sharply 3-angled, 
pointed at both ends, slightly swollen, 2’ long, 
less than 1’’ thick, several-nerved, the orifice en- 
tire; scales ovate-lanceolate with broad white scar- 
ious margins, short-awned, about one-third shorter 
than the perigynia, the awn scabrous; stigmas 3. 
Southern Missouri to Tennessee and South Carolina, 
south to Texas and Florida. April-May. 
Culms slender, smooth, erect, 1°-214° tall. Leaves 
flat, pubescent, especially on the sheaths, the basal 
2//-3// wide, often as long as the culm; lower bract 
similar to the shorter culm-leaves; spikes 3-5, oblong- 
cylindric, dense, 4’-11/’ long, nearly 3’/ in diameter, 
filiform-stalked, spreading or drooping, the lower 
distant, the upper one staminate at the base; peri- 
gynia ovoid, glabrous, ascending, swollen, faintly 
few-nerved, 2’’ long, 1’’ thick, tipped with a very 
short and slightly notched beak; scales lanceolate or 
ovate, green, with scarious margins, acute, cuspidate 
or the lower short-awned, shorter than the perigynia 
or the lower equalling them; stigmas 3. 
In dry woods and thickets, Massachusetts and Vermont 
to southern Ontario, New York and Michigan. June-July. 
81. Carex Davisii Schwein. & Torr. Davis’ Sedge. (Fig. 751. 
Carex Davisii Schwein. & Torr. Ann. Lye. N. Y. 1: 
326. 1825. 
Carex Torreyana Dewey, Am. Journ. Sci. 10:47. 1826. 
Similar to the preceding species, culms stouter, 
1%4°-3° tall. Leaves 114//-3/’ wide, flat, pubescent, 
especially on the sheaths, the basal ones often as 
long as the culm; lower bract foliaceous, commonly 
overtopping the spikes; spikes 3-5, clustered near 
the summit or the lower one distant, dense, 's/— 
114’ long, 3’’ in diameter, all filiform-stalked and at 
lengthspreading or drooping, the terminal one stam- 
inate at the base; perigynia ovoid, much swollen, 
glabrous, strongly several-nerved, 2’/-2's’’ long, 
rather more than 1’ thick, tipped with a very 
short but conspicuously 2-toothed beak; scales lan- 
ceolate or oval, long-awned, spreading, equalling 
or longer than the perigynia; stigmas 3. 
In moist thickets and meadows, Massachusetts to 
New York and Minnesota, south to Georgia, Kentucky 
and the Indian Territory. May-July. 
