GENUS 18. 



SEDGE FAMILY. 



62. Carex cristatella Britton. Crested Sedge. Fig. 929. 



Carex cristata Schwein. Ann. Lye. N. Y. i : 66. 1824. 



Not Clairv. 1811. 

 Carex tribuloidcs var. cristata Bailey, Proc. Am. Acad. 



22: 148. 1886. 

 Carex cristatella Britton ; Brit. & Br. 111. Fl. i : 357. 1896. 



Culms rather stout, i-3 tall, stiff, erect, roughish 

 above, longer than the leaves. Leaves ii"~3i" wide, 

 those of sterile shoots numerous, spreading, the 

 sheaths loose; lower bracts bristle-form, i'-ii' long; 

 heads 6-15, globose or subglobose, 2"-^' in diameter, 

 all densely aggregated into an oblong head i' long or 

 more or the lower slightly separated ; staminate flow- 

 ers basal; perigynia rather broadly lanceolate, dis- 

 tended over achene, spreading or ascending, squar- 

 rose when mature, green or greenish brown, ii"-2" 

 long, |" wide, narrowly wing-margined, several- 

 nerved on both faces, tapering into a serrulate 

 2-toothed beak ; scales lanceolate, straw-colored, 

 much shorter than the perigynia ; achenes I" long. 



In meadows and thickets, eastern Massachusetts to 

 British Columbia, south to Virginia and Missouri. July- * 

 Sept. 



63. Carex projecta Mackenzie. Necklace Sedge. Fig. 930. 



C. tribuloides var. rcducta Bailey, Proc. Am. Acad. 22 : 



148. 1886. 

 C. tribuloidcs moniliformis Britton; Brit. & Br. 111. Fl. 



i : 356. 1896. 

 C. projecta Mackenzie, Bull. Torr. Club 35: 264. 1908. 



Culms erect, triangular and roughened above, 

 slender and weak, ii-3 high, in large clumps. 

 Sterile culms leafy ; leaves with long loose sheaths, 

 blades ii"-3$" wide, shorter than culm; lower 

 bracts inconspicuous ; spikes 8-15, straw-colored, 

 with 15-30 perigynia, suborbicular, blunt, clavate at 

 base, 2i"-4' long, nearly as wide, alternately and 

 usually loosely arranged and forming a slender 

 flexuous head i'-2' long; perigynia ascending- 

 spreading with divergent beaks, lanceolate, wing- 

 margined to the round-tapering base, \\"-2\" long, 

 I" wide at base, distended over achene, tapering into 

 a rough 2-toothed beak, shorter than the nerved 

 body ; scales ovate-lanceolate, obtuse to acutish, 

 straw-colored, narrower and shorter than the peri- 

 gynia ; achene " long. 



Damp soil. Nova Scotia to North Dakota, south to 

 District of Columbia and Illinois. May-July. 



64. Carex muskingumensis Schwein. Muskingum 

 Sedge. Fig. 931. 



Carex nniskingnmciisis Schwein. Ann. Lye. N. Y. I : 66. 1824. 

 Carex arida Schwein. & Torr. Ann. Lye. N. Y. i : 312. 1825. 



Culm stout, stiff, erect, rough above, 2 ~3 tall. Leaves 

 flat, long-pointed, \\"-2.\" wide, subcordate at base, shorter 

 than the fertile culms, those of sterile culms very numer- 

 ous, crowded near the summit, somewhat distichous; 

 bracts very short and scale-like ; snikes 5-12, oblong- 

 cylindric. densely many-flowered. 7*"-i3" long, i\"-$\" 

 in diameter, erect, approximate, pale brown, narrowed and 

 staminate at the base; perigynia narrowly lanceolate, 

 closely appressed, 3*"~5" long and \\" wide, strongly 

 several-nerved, verv flat, narrowed to both ends, scarious- 

 margined. rough-ciliate, the beak strongly bidentate; scales 

 ovate-lanceolate, obtusish or acute, about one-half as long 

 as the perigynia; achene linear-oblong, \\" long; stigmas 2. 



In moist woods and thickets, Ohio to Manitoba, Missouri and 

 eastern Kansas. June-Aug. 



