; 
} 
SEDGE FAMILY. 339 
141. Carex leptalea Wahl. Bristle-stalked Sedge. (Fig. 811.) 
Carex leptalea Wahl. Kongl. Vet. Acad. Handl. (II.) 
24: 139. 1803. | 
Carex polytrichoides Willd.; Wahl. loc. cit. as syno- \ 
nym. 1803. f M 
Light green and glabrous, culms filiform, smooth, \ \ 
erect or spreading, 6’-18’ long. Leaves not over 
4\// wide, mostly shorter than the culm; spike soli- 
tary, terminal, androgynous, narrowly linear, 2//— / \ 
7’’ long, rather less than 1/’ thick, staminate 
above, pistillate below; perigynia few, linear-ob- 
long, light green, many-nerved, narrowed at the 
base, obtuse and beakless at the summit, about 114// 
long and slightly more than 14’’ thick; scales 
membranous, the upper obtuse and shorter than 
the perigynia, the lower acute, the lowest some- 
times attenuated into a subulate awn nearly as 
long as the spike; stigmas 2-3. 
In bogs and swamps, Newfoundland to British Co- 
lumbia, south to Florida, Louisiana, Texas, Colorado 
and Oregon. Ascends to 4300 ft. in North Carolina. 
June-Aug. 
142. Carex filifolia Nutt. Thread-leaved Sedge. (Fig. 812.) 
Carex filifolia Nutt. Gen. 2: 204. 1818. 
y 
1(// wide, their sheaths persistent and ultimately 
fibrillose; spike solitary, erect, bractless, staminate 
ZI above, pistillate below, 3/’-15’’ long, the pistillate 
4 part about 2’” in diameter; perigynia obovoid-oyal, 
} triangular, few-nerved or nearly nerveless, rough or 
\ somewhat pubescent at the summit, 1’’ long, rather 
more than 14’ thick, abruptly tipped by a short cyl- 
\ indric hyaline entire beak; scales broadly oval, con- 
cave with wide scarious margins, obtuse or cuspidate, 
about as long as the perigynia but much broader; 
stigmas 3. 
| 
y, Y Densely tufted, pale green and glabrous, culms very 
\ \ 
slender, smooth, erect, 3-14’ tall, equalling or longer 
\ 
Wi 
than the leaves. Leaves filiform, rather stiff, about 
In dry soil, Manitoba to British Columbia, south to 
Nebraska, Colorado and California. May-July. 
143. Carex capitata I. Capitate Sedge. 
(Fig. 813.) 
Carex capitata J,. Sp. Pl. Ed. 2, 1376. 1763. 
Culms very slender or filiform, stiff, strictly erect, 
2/-18/ tall, smooth or very nearly so. Leaves filiform, 
inyolute, erect, shorter than the culm; spike solitary, 
terminal, ovoid, bractless, 2’’/-4’// high, about 2/’ in 
diameter, staminate above, pistillate below; perigynia 
oblong-elliptic, ascending or nearly erect, light brown, 
nerveless or very faintly few nerved, 1/7 long, 4/’ 
thick, tipped with a nearly entire dark brown beak 
about one-fourth as long as the body; scales broadly 
ovate, membranous, brown, obtuse or acute, shorter 
and rather broader than the perigynia; stigmas 2. 
Greenland and Labrador to the Northwest Territory and 
on the higher summits of the White Mountains of New, 
Hampshire. Alsoin Europe. Summer. 
