238 



CYPERACEAE (SEDGE FAMILY) 



460. C. tetanica. 



461. C. tet., 

 v. Meadii. 



margined scale. Bogs and meadows, near the coast, N. S. to 

 Ct., local. May-July. (Perhaps introd. from Eu.) FIG. 459. 



106. C. tetanica Schkuhr. Slender, rarely glaucous, some- 

 what stoloniferous ; culms scabrous, at least above, 1-6 dm. 

 high; leaves 1.5-4.5 mm. wide; spikes all peduncled, the upper 

 one very shortly so, pale, all more or less attenuate 

 below, 0.7-4 cm. long, the lower borne in the axils 

 of bracts 0.5-2 dm. long ; perigynia not turgid, green- 

 ish, somewhat nerved, the beak strongly bent ; scale 

 obtuse or abruptly mucronate, all except the lowest 

 mostly shorter than the perigynia. Meadows and 

 bogs, w. N. E. to Man., and southw. May-July. FIG. 

 460. Var. Wo6on (Dewey) Bailey. Very slender ; 

 leaves narrow, very long and lax ; spikes mostly alter- 

 nate-flowered throughout ; scales often sharper. 

 Mass, to Ont., Mich., and D. C., local. 



Var. Meadii (Dewey) Bailey. Stiffer ; leaves 

 mostly broader (2.5-5 mm. broad) and stricter ; spikes 

 thick and densely flowered, not attenuate at base, 



the upper one often sessile ; perigynia larger. (Var. 'Canbyi Porter ; C. Meadii 



Dewey.) Pa. to Man., and southw. FIG. 461. 



107. C. polym6rpha Muhl. Stout, 3-6 dm. high, from 

 stout cord-like rootstocks,' leaves rather broad (3.5-5 mm.), 

 short ; spikes 1-2, short-stalked, erect, compact 



or rarely loose, usually staminate at the apex, 

 1.5-4 cm. long, 5-9 mm. thick ; perigynia long- 

 ovoid, obscurely nerved ; the very long and 

 nearly straight beak oblique or lipped at the 

 orifice; scales reddish-brown, obtuse, shorter 

 than the perigynia. Open woods aud meadows, 

 s. Me. to N. C., local. June-Aug. FIG. 462. 



108. C. vaginata Tausch. Very slender and 

 more or less diffuse, strongly stoloniferous, 

 2-8 dm. high ; leaves narrow (1.5-5 mm. broad) 

 and soft, shorter than the culm ; spikes 1-3, 

 scattered, all peduncled and more or less spread- 

 ing, loosely 3-20-Jlowered ; perigynia small, 

 nearly nerveless, thin, the beak straightish ; 

 scales loose, acute, shorter than the perigynia. 



(C. saltuensis Bailey ; C. altocaulis Britton.) Bogs and mossy 



woods, Lab. to the Yukon, s. to N. B., n. N. E., N. Y., Mich., 



Minn., Alb., and B. C. June-Aug. FIG. 463. 



109. C. abbreviata Prescott. Stiff, 1.5-5 dm. high; culm 



and leaves thinly pubescent ; spikes globose to thick-cylindric, 

 0.5-1.5 cm. long ; perigynia equaling or exceeding the mostly 

 cuspidate scales. (C. Torreyi Tuckerm.) Wooded slopes, 

 Minn, to Sask. and Col.; supposed to have been collected in 

 N.Y. by Torrey, and in Pa. by Schweinitz. 

 June, July. FIG. 464. 



110. C. pallSscens L. Slender, erect, 1-6 

 dm. high ; leaves narrow, flat, the lower slightly 

 pubescent, particularly on the sheaths ; spikes 

 2-4, 0.5-2 dm. long, densely flowered, all but 

 the upper one very shortly peduncled, erect 



464. c abbreviata or spreading ; perigynia about the length of 

 the cuspidate scales. Glades and meadows, 



Nfd. to Pa., "Wise., and Ont. May-Aug. (Eu.) FIG. 465. 

 111. C. paupercula Michx. Slender but erect, tufted, 1-2.5 



dm. high, glabrous; leaves flat and lax, somewhat shorter 



than the culm ; lowest bract as wide as the leaves or nearly 465. C. pallescns. 



462. C. polymorpha. 



468. C. vaginata. 



