420 



CYPERACEAE. 



Vol. I. 



180. Carex acutiformis Ehrh. 



Marsh Sedge. Fig. 1047 



179. Carex glaucescens Ell. Southern 

 Glaucous Sedge. Fig. 1046. 



Carex glaucescens Ell. Bot. S. C. and Ga. 2 : 553. 

 1824. 



Glabrous, light green, glaucous, culms stout, 

 phyllopodic, erect, somewhat roughened on the 

 angles above, i4°-4° tall. Leaves 5-10 to a culm, 

 flat or involute towards base, rough, ii"-2i" 

 wide, usually exceeded by the culm, long-tapering, 

 the basal'sheaths strongly filamentose ; lower bracts 

 similar, shorter; staminate spike one, stalked, the 

 scales strongly cuspidate; pistillate spikes 3-4, 

 cylindric, dense, many-flowered, 1-2' long, 3V- 

 5" wide, slender-peduncled, at first erect, finely 

 drooping; perigynia strongly glaucous, ascending, 

 ovoid or obovoid, 3-angled, ii"-i|" long, 1" wide 

 or more, obscurely nerved, tapering into a short 

 beak with entire orifice ; scales with obovate body, 

 about length of perigynia, abruptly long-cuspidate, 

 reddish-brown with green midrib, squarrose; 

 stigmas 3. 



In swamps, Virginia to Florida and Mississippi. 

 July-Sept. 



Swamp or 



A 



Carex acutiformis Ehrh. Beitr. 4: 43. 1789- 



C. paludosa Gooden. Trans. Linn. Soc. 2: 202. 1794- 



Culms stout, erect, sharp-angled, 2°-3° tall, smooth 

 below, often rough above. Leaves 2*"-6" wide, flat, 

 glaucous-green, equalling or sometimes exceeding 

 the culm; lower bracts similar to the leaves, the 

 upper short and narrow; staminate spikes 1-4, 

 stalked; pistillate spikes 3-5, narrowly linear-cylin- 

 dric, i4'-3' long, a"-2i" thick, 40-100-flowered, the 

 upper sessile or nearly so and erect, the others 

 slender-stalked, spreading or drooping; perigynia 

 ovoid, i4"-il" long, not inflated, strongly many- 

 nerved, tapering into a very short and minutely 2- 

 toothed beak; scales awn-tipped or acuminate, longer 

 than the perigynia or the upper equalling them ; stig- 

 mas 3. 



In swamps and wet meadows, eastern Massachusetts, 

 •very locally naturalized from Europe. Lesser common 

 sedge. Sniddle. June-Aug. 



181. Carex stricta Lam. Tussock Sedge. Fig. 1048. 



Carex stricta Lam. Encycl. 3: 387. 1789. 



C. stricta angustata Bailey, in A. Gray, Man. Ed. 6, 600. 1890. 



C. xerocarpa S. H. Wright, Am. Journ. Sci. (II.) 42: 334. 



1866. 



Glabrous, rather dark green, culms slender, aphyllo- 

 podic, stiff, erect, usually in dense clumps, sharply 

 3-angled and very rough above, i°-4° tall; stolons little 

 developed. Leaves long, rarely overtopping the culm, 

 very rough on the margins, i"-2-" wide, the lower sheaths 

 becoming prominently filamentose ; lower bract similar, 

 sometimes equalling the culm ; staminate spike solitary, 

 or sometimes 2, stalked; pistillate spikes 2-5, very vari- 

 able, linear-cylindric, or sometimes linear-oblong, often 

 staminate at the top, very densely flowered, or loose at 

 the base, ¥-4' long, i"-2" thick, erect- or somewhat 

 spreading, all sessile or the lower stalked ; perigynia 

 ovate-elliptic, ascending, acute, faintly few-nerved or 

 nerveless, i-i" long, minutely beaked, the orifice entire or 

 nearly so; scales dark with green margins and midvein, 

 oblong or lanceolate, obtuse to acuminate and from 

 much shorter than to somewhat exceeding perigynia, appressed ; stigmas 2. 



In swamps, Newfoundland to Ontario, Nebraska, Georgia and Texas. Hybridizes with C. 

 lasiocarpa. July-Sept. 



