CYPERACEAE (SEDGE FAMILY) 



241 



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 vgry 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-like 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. 

 477. C. Careyana. to Ont., S. to Va. and 111. May, June. 



FIG. 478. 



124. C. laxiculmis Schwein. Caespitose ; culms slender and lax, 1.5-5.5 dm. 

 long ; leaves usually very glaucous, mostly shorter than the culms, broad (6-12 

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

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

 0.7-1.6 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. 479. 

 In the interior passing to 

 var. copuiATA (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. 



126. C. digitalis Willd. 

 Very slender, bright green, 

 tufted, 1.5-5 dm. high ; leaves 



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



short-stalked ; pistillate 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 southw. 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 



478. A. platyphylla. 



