322 



CYPERACEAE. 



Carex flaccosperma Dewey. Thin- fruited Sedge. (Fig. 761.) 



Carex laxiflora var. (?) mutica Torr. Ann. Lye. X. Y. 



3: 414. 1836. Not C. mutica R. Br. 1823. 

 Carex flaccosperma Dewey, Am. Journ. Sci. (II.) 2: 



245. 1846. 



Similar to Carex grisea and C. glaucodea; 

 slightly glaucous, rather deep green, culms erect, 

 i-2 tall. Leaves thin and flat, the basal ones 

 3 // -6" wide, shorter than or equalling the culm; 

 the bracts leafy, much overtopping the spikes; 

 staminate spike sessile or nearly so; pistillate 

 spikes 2-4, oblong, erect, the lower slender-stalked; 

 perigynia oblong, 3-angled, striate-nerved, sub- 

 acute, 2^ // long; scales broadly ovate, green, not 

 at all or very slightly scarious-margined, acute, 

 cuspidate or the upper obtuse, 2-3 times shorter 

 than the perigynia; stigmas 3. 



Southern Missouri to Texas, east to North Carolina 

 and Florida. June-July. 



92. Carex glaucodea Tuckerm. Glauces- 

 cent Sedge. (Fig. 762.) 



Carex grisea var. mutica Carey in A. Gray, Man. 552. 



1848. Not C. mutica R. Br. 1823. 

 Carex glaucodea Tuckerm.: Olney, Proc. Am. Acad. 7: 



395. 1868. 



Similar in habit to Carex grisea, but pale and very 

 glaucous all over, culms smooth, erect or spreading, 

 6 / -i8 / long. Leaves 2 // -4 // wide, the basal shorter 

 than or equalling the culm; bracts foliaceous, over- 

 topping the spikes; staminate spike sessile; pistillate 

 spikes 3-5, erect, densely several-many flowered, the 

 lower slender-stalked; perigynia oblong, many-striate, 

 i% f '-2 ff long, sub-acute, beakless, mostly nearly 

 twice as long as the ovate scarious-margined acute 

 cuspidate or short-awned scales; stigmas 3. 



In open fields and meadows, Massachusetts to Pennsyl- 

 vania, Illinois, Virginia and Arkansas. May-July. 



93. Carex granularis Muhl. Meadow Sedge. (Fig. 763.) 



Carex granularis Muhl.; Willd. Sp. PI. 4: 279. 1805. 

 C. granularis recta Dewey; Wood's Class-book, 763. 1860. 

 Glabrous, light green and slightly glaucous, culms 

 slender, erect or spreading, smooth or nearly so, 6'- 

 2% long. Leaves flat, roughish or smooth, \W-$" 

 wide, the basal shorter than the culm; bracts similar 

 to the culm-leaves and usually much exceeding the 

 spikes; staminate spike solitary, sessile or short- 

 stalked; pistillate -spikes 3-5, distant or the upper 

 two contiguous, erect or slightly spreading, narrowly 

 oblong or cylindric, 1 A'-I%' long, 2 r/ thick, densely 

 many-flowered, slender-stalked or the upper sessile 

 perigynia ovoid, brown, somewhat swollen, strongly 

 many-nerved, ascending, about \" long, tipped with 

 a short, usually entire, bent or nearly straight beak; 

 scales ovate, thin, acute or cuspidate, shorter than or 

 -2- \7 I / I A \\V \ II 1 1 \ sometimes equalling the perigynia; stigmas 3. 



" ^' "" In moist meadows, New Brunswick to Ontario and 



Manitoba, south to Florida and Louisiana. May-July. 

 Carex granularis Shriven Britton. 

 Cartx Haleana Olney, Car. Bor. Am. 6. 1871. Not C. Halei, Dewey, 1846. 



Basal leaves broader, 2!^"-8" wide, glaucous; perigynia about one-half the size of the type, the 

 more conspicuous point slightly bent. Pennsylvania to Wisconsin and Virginia. 



