GENUS 18. 



SEDGE FAMILY. 



425 



194. Carex gynandra Schwein. Nodding 

 Sedge. Fig. 1061. 



Carex gynandra Schwein. Ann. Lye. N. Y. i : 70. 1824. 

 Carex crinita var. gynandra Schwein. & Torr. Ann. Lye. N. 



Y. i: 360. 1825. 



Carex Porteri Olney, Car. Bor. Am. 12. 1871. 

 Carex crinita var. simnlans Fernald, Rhodora 4: 219. 



1902. 



Similar to the following species, culms stout, 2-5 

 tall. Leaves 2"-6" wide, their sheaths shortly rough- 

 hispid; pistillate spikes l'-4' long, narrowly cylindric, 

 stalked, drooping; perigynia obovoid to oval, ascend- 

 ing, compressed, less inflated, \\"-2." long, and about 

 one-half as broad, round-tapering and minutely beaked, 

 the orifice entire ; scales lanceolate, tapering into the 

 long awn, the center strongly 3-ribbed and the body 

 brownish-tinged, more ascending, 2-4 times as long as 

 the perigynia; stigmas 2. 



In swamps, Newfoundland and Wisconsin, south to 

 /Georgia. Ascends to 5000 ft. in New Hampshire. June- 

 Aug. 



Carex crinita Lam. Fringed Sedge. Sickle-grass. Fig. 1062. 



Carex crinita Lam. Encycl. 3: 393. 1789. 



Carex crinita var. minor Boott, 111. Car. i: 18. 1858. 



Glabrous, culms stout, 3-angled, aphyllopodic and 

 filamentous at base, rough or very nearly smooth, 

 erect or somewhat recurving, 2-5 tall, from stout 

 rootstocks. Leaves flat, rough-margined, ii"-s" 

 wide, the upper sometimes overtopping the culm, the 

 lowest very short and sheathing; staminate spikes 

 i or 2, stalked, often pistillate at the base or in the 

 middle; pistillate spikes 2-6, narrowly cylindric, 

 densely very many-flowered, i'-4i' long, 3"-6" in 

 diameter, all stalked, drooping and commonly secund ; 

 perigynia stiborbicular or broadly obovoid, spreading, 

 obtuse, i"-i|" long, \"-\" wide, slightly inflated, 

 the walls thin, nerveless, abruptly tipped by the very 

 short entire beak; scales abruptly long rough-cuspi- 

 date, the outer i-3-ribbed and the body brownish- 

 tinged, spreading, 2-6 times as long as the perigynia ; 

 stigmas 2. 



In swamps and wet woods, Newfoundland to Minne- 

 sota, south to Florida and Texas. June-Aug. 



196. Carex lacustris Willd. Lake-bank Sedge. Fig. 1063. 



Carex lacustris Willd. Sp. PI. 4: 306. 1805. 



Carex riparia Muhl. Descr. Gram. 259. 1817. Not Curtis, 

 1783- 



Culms generally stout and smooth, erect, 2-3i tall, 

 strongly purplish-tinged and filamentose at base, the 

 lower sheaths not blade-bearing. Leaves elongated, 

 nodulose, usually more or less scabrous, somewhat glau- 

 cous, 2i"-6" wide, usually exceeding the culm ; lower 

 bract similar to the leaves, the upper reduced ; staminate 

 spikes 1-5, linear; pistillate spikes 2-5, cylindric, ii'-4' 

 long, about 5" in diameter, the upper erect, sessile or 

 nearly so, the lower more or less stalked ; perigynia 

 narrowly ovoid, 3" long, ij" wide, firm, strongly nerved, 

 scarcely inflated, ascending, tapering gradually into a 

 2-toothed beak, the teeth erect or slightly divergent, 

 i" long; scales lanceolate or oblanceolate, long-aristate 

 or acute, the lower longer, the upper equalling or 

 shorter than the perigynia, purplish-tinged ; stigmas 3. 



In swamps, Newfoundland to James' Bay and Manitoba, 

 south to Delaware, Iowa and Idaho. Great common-sedge. 

 May-Aug. 



