CYPBRACEAE (SEDGE FAMILY) 



249 



than the perigynia. — In sandy soils, from s. Me. to e. N. Y., and D. C. ; "south 

 to Ga." May-July. Fig. 521. Var. Kennedyi Fernald. Staminate spike 

 about 1 cm. long, hidden by the pistillate. — Wilmington, 

 Mass. (^Kennedy). 



155. C. striata Michx., var. brSvis Bailey. Stiff, 3-8 

 dm. high, extensively creeping ; culm sharply angled, smooth 

 or slightly rough above, mostly exceeding the leaves.; leaves 

 narrow and stiff, becoming involute; spikes 1-2, mostly 

 closely sessile, considerably separated vphen two, short 

 (1-5 cm. long) and rather thick, erect ; perigynia broad- 

 ovoid with impressed nerves, smooth, ascending, short- 

 beaked and very short-toothed ; scales thin, obtuse or 

 acutish, mostly about l as long as 

 . the perigynia. (C. WaUeriana,Yav. 

 Bailey.) — Pine-barren swamps, s. e. 

 Mass., southw., local. June-Aug. 

 Tig. 522. 



156. C. oligospfirma Michx. 

 Very slender, but stiff, 2..5-9 dm. 

 high ; culms solitary or few from a 

 slender stoloniferous base; leaves 

 and bracts very narrow, becoming 

 involute; stamjnate spike pedun- 

 cled ; pistillate spikes 1 or 2, rarely 

 3, sessile or the lowest very short- 

 peduncled, globular or short-oblong 

 (0.7-2 cm. long) feio-flowered ; peri- ^^^_ ^ 34^^,. , ^..^^ 

 gynia turgid, shining, gradually 

 contracted into a very short and minutely toothed beak, 

 prominently few-nerved, yellowish, nearly twice longer 

 — Bogs and wet shores. Lab. and Nfd. to the 

 Mackenzie, s. to Pa., and the Great Lake region. June-Aug. 

 Fig. 523. 



157. C. HfRTA L. Variable in size (2-6 dm. high), widely creep- 

 ing ; culm rather slender but erect, obtuse and smooth or slightly 

 rough above ; leaves soft and flat, generally sparsely hairy and 

 the sheaths very hirsute, rarely smooth ; spikes 2-3, distant, more 

 or less shortly peduncled, erect or nearly so, 

 1.5-4 cm. long, rather loose; perigynia long- 

 ovoid, nerved, soft-hairy, the prominent beak 

 slender-toothed ; scales thin and green-nerved, 

 awned, mostly a little shorter. — Groves, fields, 

 and made-lands, e. Mass. to centr. N. Y. and 

 Pa. ; local. June-Aug. (Nat. from Eu.) 

 Fig. 524. 



158. C. trichocdrpa Muhl. Stout and tall, 



0.6-1.2 m. higii ; culm sharply angled, rough 



above ; leaves numerous, flat, 3-6 mm. wide, 



very rough, but not hairy, much exceeding the 



culm ; spikes 2-5, scattered, the lower stalked 



and more or less spreading, 3-8 cm. long, 



1-1.5 cin. thick, heavy, but loosely flowered 



at base ; perigynia ovoid, many-costate, sparsely 



short-hairy, about twice as long as the mem- 



B25 c trichocarna hranaceous, aoute or acuminate scales. — 



Marshes, s. w. Vt. to Ont., s. to Pa. and 111, 



June-Aug. Fig. 525. Var. tcrbinXta Dewey. Spikes 2-2.5 cm. long, 1.3-1.8 



cm. thick ; perigynia lance-subulate. — Dutchess Co., N. Y. 



Var. DewSyi Bailey. Leaves narrower, often becoming somewhat involute, 

 snjoother ; spikes short, 1.5-5 cm. long, all but the lowest one sessile ; perigynia 



52s. C. oligosperraa. 

 than the blunt scales. 



/ 



824. C. hirta 



