Genus 18. SEDGE FAMILY. 



128. Carex striatula Michx. Striate Sedge. 

 Fig- 995- 



C. striatula Michx. Fl. Bor. Am. 2: 173. 1803. 

 Carex laxifiora var. divaricata Bailey, Mem. Torr. Club 

 1 i 33. 1889. 



Glabrous, pale green, culms loosely caespitose, 

 nearly smooth, triangular, little flattened, erect, i°-2° 

 high. Leaves shorter than culm, 3V-6" wide ; bracts 

 short, usually exceeded by culms; staminate spike 

 solitary, usually long-stalked, its scales commonly 

 reddish-brown tinged; pistillate spikes usually two, 

 widely separate, erect, peduncled, linear-oblong, 6"- 

 15" long, closely or at base loosely 6-20-flowered ; 

 perigynia obovoid-fusiform, divergent, obtusely tri- 

 angular, strongly nerved, 2"-2i" long, i" wide, tipped 

 with a straight or slightly oblique conspicuous beak; 

 scales broadly ovate, short-cuspidate, hyaline-mar- 

 gined, slightly reddish-brown tinged, shorter than 

 perigynia; stigmas 3. 



New Jersey and Pennsylvania to Florida, Tennessee and 

 Texas. April-June. 



403 



129. Carex styloflexa Buckley. Bent Sedge. 

 Fig. 996. 



Carex styloflexa Buckley, Am. Journ. Sci. 45: 174. 1843. 

 Carex laxifiora var. styloflexa Boott, 111. 37. 1858. 



Glabrous, culms rather loosely caespitose, slender, 

 triangular, often purplish at base, smooth, i°-2i° tall. 

 Leaves 1 i"— 3" wide, flat, shorter than the culm; bracts 

 short, usually exceeded by the spikes ; staminate spike 

 solitary, usually long-stalked but sometimes nearly ses- 

 sile, its scales usually reddish-brown tinged ; pistillate 

 spikes 1-4, distant, loosely 4-12-flowered, s"-io" long, 

 the lower drooping on elongated filiform stalks ; peri- 

 gynia elliptic-fusiform, triangular, many-nerved, o."-2.\" 

 long, 4" thick, somewhat divergent, tapering gradually 

 to both ends and thus slender-beaked, the beak straight 

 or little oblique ; scales ovate or ovate-lanceolate, scari- 

 ous-margined, reddish-brown-tinged, acute, cuspidate or 

 short-awned, shorter than the perigynia ; stigmas 3. 



In woods and thickets, Connecticut to Florida and Texas. 

 May-July. 



130. Carex Shriveri Britton. Shriver's Sedge. Fig. 997. 



Carex Haleana Olney, Car. Bor. Am. 6. 1871. Not C. 



Halei Dewey, 1846. 

 C. granulans Shriveri Britton, in Britt. & Br. 111. Fl. 1 : 



322. 1896. 

 Carex Shriveri Britton, Manual 208. 1901. 



.Glabrous, light green and slightly glaucous, culms 

 slender, erect, smooth or nearly so, 6'-2° tall. Leaves 

 flat, 2j"-8" wide, the basal shorter than the culm; 

 bracts similar to the leaves, the lower rarely equalling 

 the culm, strongly sheathing; staminate spike soli- 

 tary, sessile or nearly so ; pistillate spikes 2-5, distant, 

 or the upper two contiguous, erect or somewhat 

 spreading, linear-oblong, 3i"-i4" long, 2"-2i" thick, 

 densely 15-50-flowered, the lower at least exsert- 

 peduncled ; perigynia narrowly obovoid, little swollen, 

 circular in cross-section, not strongly nerved, as- 

 cending, about 1" long, I" wide, contracted into a 

 minute, usually entire, straight or rarely slightly bent 

 beak, or essentially beakless; scales narrowly ovate, 

 thin, acuminate or cuspidate, much shorter than the 

 perigynia. 



In moist meadows, Maine to North Dakota, Virginia 

 and Indiana. May-July. 



