CYPEEACEAE (SEDGE FAMILY) 



253 



171. C. gigantea Rudge. Loosfly caespUose or som.ewh?it fitolomterons, stouty 

 0.5-1.2 m. high ; leaves 0,7-1.5 cm. hroad ; staininate spikes 2-4 ; pistillate 2-4, 

 scattered, the hncest long-peduncled and remote, rather 

 loosely flowered. o-7 cui. long, 2-2.7 cm. thick; peri- 

 gynia swollen below but very ahruplhf contracted into ^ 

 a slender beak 3-4 times as long as the body, spreading \\ 



at right angles or nearly so. never 



becoming yellow ; scales narrow. 



smooth. (C grandis Baile}'.) — 



iSwamps, Del., Ky.. and Mo., southw. 



July-Sept. Fig. 541. 



172. C. Iupulif6rmis Sartwell. 



Stout, tall, 0.0-1.2 m. high: leaves 



0.(3-1.3 cm. broad, conspicuously 



elongate ; bracts broad and far ex- 

 ceeding the culm ; staminate spike 



nsually peduncled ; pistillate spikes 



3-5, 3-8 cm. long, cylindrical (2-3.5 



cm. thick), at least the lower j^^- 



duncled, erect or ascending, somewhat scattered or the 



tipper approximate, becoming yelloicish broirn; perigynia 



narrowly conic-ovoid, 1.3-2 cm. long, mostly twice ex^eed- 



541. C. gigantea. 



542. C. lupiiliformis. 



mg tr.e firm lance-attenuate scales, ascending, 



Una, var. polystachya Schwein. & Torr.) — Rich swamps, 

 meadows, and prairies. Vt. to 31inn., s. to Del., 111., and 

 La. July-Oct. Fig. 542. 



173. C. lupulina Muhl. A^ery stout and leafy. 4-9 dm. 

 high ; leaves M.(i-1 cm. broad, loose ; bracts broad and 

 elongate ; pistillate spikes 2-(1, approximate at the top of 

 the culm, all closely sessile or the lower sometimes short- 

 peduncled, thick-cylindrical to .subglobose, very heavy and 

 densely Jfoicered, 3-G cm. long. 2-3 cm. thick; staminate 

 spike sessile ; perigynia much inflated, rather soft. 1.3-2 

 cm. long, erect or but slightly spreading, giving the spike 

 a hop-like aspect (whence the name); scales firm, lance- 

 ovate, mostly much shorter than the perigynia. — Swamps 



(C lupu- 



54:;. 



and wet woods N. B., to Ont., la.. 



C. lupuliua. 

 and southw. July- 



543. — Frequently hybridizes with other 



Oct. Fig. 

 species. 



Var. pedunculata Dewey. Often taller ; spikes more 

 or less scattered, some or all prominently peduncled ; 

 staminate spike usually conspicuous, generally pe- 

 duncled; perigynia more spreading. — Locally more 

 abundant. 



174. C. Grayii Carey. Rather stout, 0.3-1 m. high ; 

 leaves 6-11 mm. wide, flat, harsh, pale green; pistillate 

 spikes 1 or 2, tlie lowest often peduncled, perfrctly 

 globular and coini)acily 0-30-flowered, the perigynia 

 firm, much inflated, glabrous, 1.5-2 cm. long, spread- 

 ing or deflexed and ])rominently many-nerved. (C 

 Asa-Grayi Bailey.) — Wet alluvial woods and meadows, 

 w. N. E. to Ont., la., and Mo., local. June-Oct.- Fig. 

 644. 



Var. hispidula Gray. Perigynia hispidulous. — Ct. 

 to Mo., and southw. 



175. C. intumescens Rudge. Slender, 0.3-1 m. 

 ; leaves and bi'acts 3-8 mm. wide, soft, much elongate, dark green ; pistil- 

 spikes 1-3. stibglobose or short-ovoid, loosely 1-12-flowered ; the perigynia 



thin, bladdery, green, 1-1.5 cm. long, 5-8 mm. thick, spreading, many- 

 nerved. — Swamps, meadows, and alluvial woods, throughout ; the typical 



544. C. Grayii. 



high 

 late 



