CYPERACEAE (SEDGE FAMILY) 



241 



C. Caivvana. 



476. C. plantaginea x %. 



Fruiting culrn, perigyn- 



ium, and leaf-tip. 



longer than the sharp scales. Rich woods, N. B. to Man., 

 s. to N. C., Ind., and 111. Apr.-June. FIG. 476. 



122. C. Careyana Torr. Tall and slender, mostly 

 erect, 3-8 dm. high ; leaves bright green, firm, 1-1.5 cm. 

 wide, . shorter than the long culm ; bracts leafy; staminate 

 spike heavy and stalked,* 1.3-2.3 cm. 

 long; pistillate spikes 2-3 (mostly 2), 

 erect, the upper usually near the ter- 

 minal spike, and nearly sessile, the other 

 remote and long-peduncled, loosely 2-8- 

 flowered ; perigynia very sharply angled, 

 the beak oblique, finely many-nerved, 

 twice longer than the sharp scales. 

 Rich woods, N. Y. and Ont. to Mich, and 

 D. C., local. May, June. FIG. 477. 



123. C. platyphylla Carey. Low, 

 spreading, glaucous, 1-4 dm. high ; leaves 

 mostly shorter than the culms ; bracts 

 with thin and sharp-pointed leaf-Wee tips ; 

 staminate spike stalked ; pistillate spikes 

 2-3, scattered, all more or less pe- 

 duncled, alternately 2-10-flowered ; peri- 

 gynia strongly many-striate, about the 

 length of the acute or cuspidate scales. 

 Rich shady woods and banks, s. Me. 

 to Ont., s. to Va. and 111. May, June. 

 FIG. 478. 



124. C. laxiciilmis Schwein. Caespitose; culms slender and lax, 1.5-5.5 din. 

 long ; leaves usually very glaucous, mostly shorter than the culms, broad (C-12 

 mm.); staminate spike usually peduncled, 1-2 cm. long; 

 pistillate 3-5, very remote, on capillary flexuous peduncles, 

 0.7-1.5 cm. long, 3.5-5 mm. thick; the spreading-ascending 



sharply trigonous-ovoid peri- 

 gynia 2.8-3.2 mm. long, 

 equaling or exceeding the 

 scales. Glades and rich 

 woods, s. Me. to Va., and 

 Mo. May-July. FIG. 470. 

 In the interior passing to 

 var. copuiAxA (Bailey) Fer- 

 nald. Glaucous or some- 

 times deep green ; spikes 1-2 

 cm. long; perigynia 3.3-4 

 mm. long. (C. digitalis, 

 var., Bailey.) Vt. to Del., 

 O., Mich., and Ont. 

 125. C. digitalis 

 Very slender, bright 

 tufted, 1.5-5 dm. high 

 479. C. laxiculmis. 480. C. digitalis, narrow ; staminate 



short-stalked ; pistil late spikes 

 2-4, on filiform stalks, ascending or slightly spreading, linear, 1-3 cm. long, 

 alternately flowered ; perigynia 2.5-3 mm. long, longer than the acute whitish 

 scales. Dryish woods and glades, Me. to Ont., Mich., and south w. May -July. 

 FIG. 480. 



126. C. ptychocarpa Steud. Low, glaucous; culms 0.3-1. 8 dm. high; leaves 

 flat and rather broad (4-8 mm.), much exceeding the culms; bracts leafy and 

 much prolonged; staminate spike very small and sessile, mostly overtopped by 

 the upper pistillate spike; pistillate spikes 2-3, sessile or short-stalked or rarely 

 the lowest long-peduncled, erect, 0.7-1.5 cm. long; perigynia tawny, narrowly 



GRAY'S MANUAL 16 



Willd. 



green, 



leaves 



spike 



47S. A. platyphylla. 



