CYPERACE.E. (sedge EAMh.!.) 609 



perigyiiium very large and very sharply augled, the beak ohlique, finely mauy- 

 nerved, twice longer than the sharp scale. — Rich woods, ^^ Eng. to Mich., 

 and southward to Washington ; rare. 



•*-<• ++ Sheaths usually purple. 

 74. C. plantaginea, Lam. Slender but erect, 1-2° high; leaves -|-1' 

 broad, very firm, appearing after the flowers and persisting over winter, shorter 

 than the culm; stamiuate spike purple and clavate, stalked; pistillate spikes 

 3-4, scattered, loosely few-flowered, erect, the peduncles included in the leaf- 

 less sheaths ;"perigyuium smaller than in n. 73, prominently beaked, about ae 

 long as the sharp scale. — Rich woods, N. Eng. to Wise, and southward ; local 



* 6. — -1—3. Panicece. 

 •w- Beak ci/lindrical and prominent ; plant not glaucous. 



Ifi. C. Saltuensis, Bailey. Very slender and more or less diffuse, strongly 

 stoloniferous, 1-1^° high; leaves narrow and soft, shorter than the culm; 

 spikes 2-3, scattered, all peduncled and more or less spreading, loosely 3 - 10- 

 flowered; perigynium small, nearly nerveless, thin, the beak straight and 

 sharply toothed ; scale loose, acute, shorter than the perigynium. (C vao'i- 

 nata, last sd.) — Deep swamps, Vt. to Minn. ; local. 



76. C. polymorpha, Muhl. Stout, 1-2° high; leaves rather broad 

 short ; spikes 1 - 2, short-scalked, erect, compact or rarely loose, usually 

 staminate at the apex, H' long or less; perigynium long-ovate, obscurely 

 nerved; the very long and nearly straight beak oblic^ue or lipped at the ori- 

 fice; scale reddish-brown, obtuse, shorter than the perigyuium. — 'Moist 

 meadows, Mass. to N. C. ; local. 



++ ■•-*• Beak short or none ; plant often glaucous. 

 = Plants ofordinarij habit. 



77. C. tetaniea, Schkuhr. Rather slender, rarely glaucous, somewhat 

 stoloniferous ; culm scabrous, at least above ; spikes all peduncled, the upper 

 one very shortly so, pale, all more or less attenuate below, the lower borne in 

 the axils of bracts 3' long or more ; perigynium not turgid, greenish, promi- 

 nently many -nerved, the beak strongly bent ; scale obtuse or abruptly mucro- 

 nate, all "except the lowest mostly shorter than the perigynium. — Meadows 

 and borders of ponds from W. Mass. westward ; common westward. — Var. 

 Wo6dii, Bailey. Very slender and strongly stoloniferous; leaves narrow, 

 very long and lax; spikes mostly alternately flowered throughout; scales 

 often sharper. (C. Woodii, Deiceij.) Rich woods, N. Y. to Mich., and south 

 :o Washington; frequent. — Var. Meadii, Bailey. Stiffer; leaves mostly 

 broader and stricter ; spikes thick and densely flowered, not attenuate at base, 

 the upper one often sessile; perigynium larger. (C. Meadii, Dewey.) R. I. 

 to Neb., and southward; rare eastward. — Var. Canbyi, Porter. Stout and 

 stiff ; leaves still broader (about 1" wide) and flat ; spikes thick, often \' wide ; 

 perigynium long, straight or very nearly so ; scale large, nearly equalling or 

 exceeding the perigynium. E. Penn. {Canhy) ; 111. and Wise. ; little known. 



C. PAxfcEA, L. Strict, often stiff, glaucous-blue 1-2° high ; culm smooth ; 

 bracts 1-2' long ; spikes 1-3, scattered, colored, peduncled, erect, rather com- 

 pact or loose below, seldom 1' long; perigynium ovoid, yellow or purple, some- 

 what turgid, scarcely nerved, the point usually curved, mostly longer than the 

 purple-margined scale. — Eields, E. Mass. and R. I. (Nat. from Eu.) 



