GENUS 18. 



SEDGE FAMILY. 



4 2 3 



Carex Emoryi Dewey (C. millegrana Holm), with sharply trigonous culms, very rough involute- 

 margined leaves and strongly nerved perigynia occurs from New Jersey and Maryland to North 

 Dakota and New Mexico. 



1 88. Carex nebraskensis Dewey. Nebraska Sedge. Fig. 1055. 



C. Jamesii Torr. Ann. Lye. N. Y. 3 : 398. 1836. Not 



Schw. 1824. 

 Carex nebraskensis Dewey, Am. Journ. Sci. (II.) 18 : 



102. 1854. 



Glabrous, culms rather stout, erect, sharp-angled, 

 smooth, or rough above, i-3 tall, phyllopodic, from 

 stout, long-creeping rootstocks. Leaves pale green, 

 ii"-4" wide, rough-margined, their sheaths more or 

 less nodulose; lower bract foliaceous, shorter than 

 to exceeding culm, the upper much shorter and nar- 

 rower; staminate spikes commonly 2, stalked; pis- 

 tillate spikes 2-5, dense, oblong-cylindric, erect, 9"- 

 25" long, 3"-4$" in diameter, sessile or the lower 

 short-stalked ; perigynia ascending, elliptic or some- 

 what obovate, prominently several-ribbed when ma- 

 ture, short-beaked, the beak 2-toothed ; scales ovate 

 or lanceolate, obtusish to strongly acuminate, dark 

 with a green midvein, the upper shorter than the 

 perigynia; stigmas 2. 



South Dakota and Nebraska to Oregon, California 

 and New Mexico. May-Aug. 



189. Carex subspathacea Wormsk. Hoppner's Sedge. Fig. 1056. 



C. subspathacea Wormsk. Fl. Dan. 9: 4. pi. 1530. 1816. 



Carex Hoppneri Boott; Hook. Fl. Bor. Am. 2: 219. pi. 

 220. 1840. 



Glabrous, culm stiff, phyllopodic, smooth, i'-j' tall, 

 from slender elongated rootstocks. Leaves rigid, 

 smooth, f"-ii" wide, the margins strongly involute; 

 lower bracts foliaceous, somewhat spathe-like ; stami- 

 nate spike solitary, stalked ; pistillate spikes 1-3, 

 erect, sessile or very short-stalked, 3"-6" long, ii"-2" 

 in diameter, closely 4-i5-flowered; perigynia oval or 

 ovoid, coriaceous, very short-beaked, pale green, 

 faintly few-nerved, densely puncticulate, about li" 

 long; scales ovate or ovate-oblong, obtuse or acute, 

 shorter than or equalling the perigynia; stigmas 2. 



Greenland to Hudson Bay. Also in northern Europe 

 and Asia. Intergrades with the next. July-Aug. 



190. Carex salina Wahl. Salt-marsh Sedge. Fig. 1057. 



Carex salina Wahl. Kongl. Vet. Acad. Handl. (II.) 24: 165. 



1803. 

 C. cuspidata Wahl. loc. cit. 164. 1803. Not Host, 1801. 



Glabrous, culm slender but stiff, phyllopodic, smooth, 

 erect, 4'-i8' tall, from slender elongated rootstocks. 

 Leaves very narrowly linear, i"-2$" wide, rarely over- 

 topping the culm, the margins revolute ; lower bract 

 similar, not spatfie-like ; staminate spikes I or 2, stalked ; 

 pistillate spikes 2-4, slender-stalked or the upper ses- 

 sile, erect, i5-4O-flowered, s"-is" long, 2"-3" thick; 

 perigynia ovate-elliptic, coriaceous, pale, faintly few- 

 nerved, densely puncticulate, ascending, i$" long, taper- 

 ing into a very short entire beak; scales ovate, reddish- 

 brown or chestnut, with a green midvein, acute or 

 cuspidate, somewhat longer than the perigynia ; stig- 

 mas 2. 



In salt marshes, Greenland to Hudson Bay. south to 

 Quebec. Also in arctic Europe. Intergrades with the next. 

 July-Aug. 



