CYPERACEAE 213 



54. Carex glaucodea Tuckerra. Similar in habit to Carex grisea, but pale and very 

 glaucous. Stems and scapes 1.5-5 dm. long : leaf -blades 4—8 mm. wide : bracts foliaceous : 

 staminate spike sessile : pistillate spikes 3-5, erect, densely flowered, the lower slender- 

 stalked : perigynia oblong, 3-4 mm. long, beakless, nearly twice as long as the scales. 



In open fields and meadows, Massachusetts to Pennsylvania, Illinois, Virginia and Arkansas. 

 Spring and summer. 



55. Carex granularis Muhl. Stems and scapes slender, smooth or nearly so, 1.5-6 

 dm. long : leaves slightly glaucous ; blades 3-6 mm. wide, the basal shorter than the scape : 

 bracts similar to the leaves : staminate spike sessile or short-stalked : pistillate spikes 3-5, 

 erect or slightly spreading, 1-3 cm. long, 4 mm. thick, many-flowered, stalked or the 

 upper sessile : scales ovate, acute or cuspidate : perigynia ovoid, strongly many-nerved, 

 2-3 mm. long, each with a short, bent or nearly straight beak. 



In moist meadows, New Brunswick to Manitoba, Florida and Louisiana. Spring and summer. 



56. Carex microddnta Terr. Stems and scapes 1.5-5 dm. tall, smooth : leaves 

 overtopped by the scapes ; blades linear, 4-5 mm. wide, smooth : staminate spikes 1-3, 1-4 

 cm. long : pistillate spikes 2-3, cylindric or oblong-cylindric, 1-3 cm. long, 4-5 mm. 

 thick, long-peduncled, erect or arching, remote, the lower one usually near the base of the 

 scape : scales hyaline, as long as the perigynia or shorter : perigynia ovoid or oval, about 

 3 mm. long, yellowish green, abruptly pointed, flnely few-ribbed. 



On wet prairies, Mississippi and the Indian Territory to Texas. Spring and summer. 



57. Carex Crawei Dewey. Stems and scapes stifle, 7-40 cm. tall : leaves rather stiff ; 

 blades 2-4 mm. wide, shorter than the scape : bracts similar to the leaves : staminate spikes 

 1-3, long-stalked : pistillate spikes 1-4, cylindric, short-peduncled, erect, 1-2.5 cm. long, 

 4-6 mm. thick, the lowest often borne near the base : scales obovate or oval, acute or cus- 

 pidate, shorter than the perigynia : perigynia ovoid, usually resinous-dotted, 2-3 mm. 

 long, each tapering into a short entire beak. 



In meadows and on banks, Quebec to Manitoba, Pennsylvania, Tennessee and Nebraska. Spring 

 and summer. 



58. Carex conoidea Schk. Stems and scapes rather stifl', 2-5 dm. tall : leaf-blades 

 2-3 mm. wide : lower bracts similar to the leaves : staminate spike long-stalked : pistillate 

 spikes 1-3, distant, erect, oblong, 1-2.5 cm. long, 5 mm. thick, the lower slender-stalked : 

 scales broadly ovate, each contracted into a rough awn, the lower longer than the peri- 

 gynia, the upper shorter than or equalling them : perigynia oblong, obtusely 3-angled, 

 acute, beakless, 2-3 mm. long, about 1 mm. thick, the orifice entire. 



In meadows, Nova Scotia to Ontario, Rhode Island, New Jersey, the mountains of North Carolina 

 (according to Chapman), Ohio and Iowa. Spring. 



59. Carex oligocdrpa Schk. Stems and scapes very slender or almost filiform, 

 roughish, 2-5 dm. long : leaf-blades about 2 mm. wide, soft : bracts similar to the leaves : 

 staminate spike long-stalked or nearly sessile : pistillate spikes 2-4, erect or nearly so, 

 distant, loosely few-flowered, 8-16 mm. long, less than 4 mm. thick, the lower filiform- 

 stalked : scalas ovate, each with a rough spreading awn : perigynia oblong, pale, 2-2.5 

 mm. long, each narrowed into a short entire beak. 



In dry woods and thickets, Vermont and Ontario to Michigan, Iowa, New Jersey, North Carolina, 

 the Indian Territory and Kansas. Spring and summer. 



60. Carex polymdrpha Muhl. Rather dark green. Stems and scapes stiff, 2-6 dm. 

 tall : leaf -blades 3-4 mm. wide, nearly erect : bracts usually little longer than the pistillate 

 spike : staminate spikes 1 or 2, long-stalked : pistillate spikes commonly solitary, erect, 

 short-stalked or sessile, 2-4 cm. long, 8 mm. thick : scales red-bi-own, somewhat shorter 

 tlian the perigynia : perigynia ovoid-oblong, obscurely 3-angled, fully 4 mm. long and 2 

 mm. in diameter, the beak more than i as long as the body, the orifice oblique. 



In swamps or wet meadows, ISIaine to New Jersey, Pennsylvania and North Carolina. Summer. 



61. Carex tetinica Schk. Light green and glabrous. Stems and scapes slender, 

 rough above, 2-5 dm. tall : leaf-blades 2-4 mm. wide : bracts narrow, elongated : staminate 

 spike stalked : pistillate spikes 2 or 3, erect, distant, 2.5 cm. long or less, or the lower fili- 

 form-stalked and drooping : scales ovate-oblong : perigynia oblong, many-nerved, about 3 

 mm. long, the summit of each curved outward and tapering to an entire orifice, beakless. 



In meadows and wet woods, Maine to Manitoba, North Carolina and Louisiana. Summer. 



62. Carex Mekdii Dewey. Similar to the next preceding species. Stems and scapes 

 stouter, very rough above, 3-4 dm. tall : bracts short, not overtopping the spikes : stami- 

 nate spike long-stalked : pistillate spikes 1-3, oblong-cylindric, dense, 1-2.5 cm. long, 

 about 6 mm. in diameter, erect, stalked or the upper one sessile: the lowest spike is 

 sometimes borne on a very long stalk arising from the axil of one of the basal leaves : scales 



