SEDGE FAMILY. 





Blackened Sedge. ( Fig. 686. ) 



16. Carex ambusta lioott. 



C>!>, i ambusla Boott, 111. 64. pi. 172. 1858. 



Similar to C. saxatilis, culms slender, erect, 8'- 

 iS' tall, nearly or quite smooth. Leaves nearly or 

 quite smooth, elongated, mostly less than i" wide, 

 involute in drying, nearly erect, shorter than the 

 culm; bracts similar to the upper leaves, sometime-* 

 equalling or overtopping the culm; staminate spike 

 solitary, stalked; pistillate spikes i or 2, oblong, 

 . obtuse, densely many-flowered, slender- 

 stalked or the upper nearly sessile, 6" -9" long, 

 about 3 ,' 2 '" i" diameter; perigynia oblong-lam ... 

 late, i 'i'" long, rather more than }," wide, spread- 

 ing or ascending, biconvex, smooth, firm, not at all 

 inflated, dull, faintly few-nerved at the base, green 

 below, dark brown at the summit, tapering into a 

 short minutely 2-toothed beak; scales lanceolate, 

 dark brown, as long as the perigynia; stigmas 2. 



Labrador, British Columbia to Alaska. Sunimer. 



17. Carex utriculata Boott. Bottle Sedge. ( Fig. fv 



\ : \ H.,r. Am i 



Care* utriculata Boott; 



1840. 

 Carer utriculata var. minor IV.M.- l80X 



Glabrous, culms stout, erect, 2-4 tall. Leave* 

 elongated, nodulose, the upper mostly 



the culm, 2"-6" wide, the midvcin prominent; 

 bracts overtopping the culm ; staminate spikes 1-4. 

 linear, stalked, the lower occasionally pistillate at 

 the top and usually subtended by a very lender 

 bract; pistillate spikes 3 or 4, nearly erect, r\ 

 dric, densely many-flowered or sometime* looter 

 near the base, z'-o' long, the lower short talked. 

 the upper sessile, sometimes staminate at the com- 

 mit; perigynia spreading when old, ovoid, light 

 green, somewhat inflated, few-nerved, J 

 long, narrowed into a sharp 2-toothed beak; 

 lanceolate, the lower awned and slightly 

 than the perigynia, the upper acute; stigmas J. 



Marshes, Anticosti to British Colombia, Delaware. 

 Ohio, Minnesota, Nevada and California. Jane-Stf*. 



18. Carex monile Tuckerm. Necklace Sedge. (Fig. 6* 



Care.v monile Tuckerm. Enum. Meth. 20. 1843. 

 Carex Olneyi Boott, 111. 15. />/. 42. 1858. 



Glabrous, culm slender, erect or reclining, i#-3 

 tall. Leaves elongated, rather light green, i#"-2#" 

 wide, sometimes exceeding the culm, little or not at 

 all nodulose; bracts similar, often overtopping the 

 culm; staminate spikes 1-4, usually 2 or 3, slender- 

 stalked, commonly subtended by short bracts; pistil- 

 late spikes 1-3, erect-spreading, cylindric, \'-j{ long, 

 about 4" in diameter, many-flowered, rather loose at 

 maturity, the upper sessile, the lower one, when 3, 

 slender-stalked and usually remote; perigynia yellow- 

 ish green, ascending or spreading, ovoid, inflated, 

 about 2^ x/ long, rather strongly 8-ionerved, tapering 

 into a sharp 2-toothed beak; scales lanceolate, acumi- 

 nate or awned, shorter than the perigynia; stigmas 3. 



In marshes and wet meadows, Nova Scotia to British 

 Columbia, south to New Jersey, Missouri, in the K 

 Mountains to Colorado, and to California. June-Aug. 



