242 



CYPERACEAE (SEDGE FAMILY) 



4S2. C. laxiflora. 



483. C. lax., 

 V. gracillima. 



trigonous-ovoid, twice longer than the very thin obtuse scales, 



— Low ^voods, Mass. to Fla. and La., local. June, July. 

 Fig. 481. 



127. C. laxiflbra Lam. Slender but mostly erect, 2-5.7 

 dm. high ; basal leaves 2.5-7 mm. wide, rather soft ; stami- 

 nate spike peduncled oral least conspicuous ; 

 pistillate spikes 2—4, scattered, pefhiiicled or 

 the upper one sessile, 

 loosely Jlovjered, cyliu- 

 dric, 1.5-;3 cm. long, 

 erect or the lower loosely 

 spreading ; perigynia 

 obovoid, conspicuously 

 nerved, the short entire 

 beak much bent or re- 

 curved ; scales thin and 

 white,bluntorcuspidate, 

 mostly shorter than the 

 perigynia. — Rich woods 

 and meadows, e. Que. 

 to w. Ont., and southw. 

 May-July. Fig. 482. 



— Exceedingly variable, 



passing by many transi- 

 ibl. C. ptychocarpa. JJ^^^ ^^ ^j^^ following. 



Var. gracillima Boott. Similar; but with short (0.5-1.3 cm. long) ohlong 

 clo.ser-flowered spikes. — Vt. to Ont., and southw. Fig. 483. 



Var. patulifblia (Dewey) Carey. Leaves 

 0.6-2 cm. broad ; staminate spike prominent, 

 mostly stalked ; pistillate spikes long (2-4.5 

 cm.) and alternately flovjered, scattered and 

 peduncled ;pf'?-«'(/2/nm 2.5-4 mm. long, ellipsoid, 

 attenuate at both ends, mostly less prominently 

 nerved, and the beak not strongly recurved. 

 — Me. to Va., 0., Mich., and Ont. Fig. 484. 



Var. Michauxii Bailey. Tall and compara- 

 tively stout, 4-(J dm. high ; leaves 0.7-1.2 cm. 

 broad ; staminate spike large and stalked ; pis- 

 tillate spikes scattered, all but the upper one 

 prominently peduncled, 1.2-3 cm, 

 long ; perigynia vory 'targe, 4-5 

 mm. long, divaricate. (Vir.divari- 

 cata Bailey. ) — Pa. to Ala. and 

 Tex. Fig. 485. 



Var. styloflexa (Buckley) Boott. 

 Very iveak and slender, 3-9 dm. 

 high ; leaves 3-6 mm. wide ; stam- 

 inate spike usually peduncled ; 

 pistillate 2-3, scattered, few-flow- 

 ered, 0.5-2 cm. long, lowest droop- 

 ing ; perigynia oblong-fusiform, 

 4-5 mm. long, very long-pointed; scales often brown-tinged. (C. 

 styloflexa Buckley.) — Ct. to Fla. and Tex. Fig. 486. 



Var. varians Bailey. Culms often ancipital, 2.5-5 dm. high; 

 leaves 0.3-1.2 cm. broad ; pistillate spikf^s 1-3 cm. long, linear- 

 cylindric to nnrroio- oblong, the two upper more or less contiguous 

 to the staminate spike and sessile or nearly so ; bracts leafy and prolonged. — 

 Me. to Ont., la., and .southw. 



Var. bldnda (Dewey) Boott. Leaves 0.5-1.4 cm. broad ; culms soft, ancipi- 

 'Ml, 1.5-G dm. high ; pistillate spikes oblong, 0.5-2 cm. long, the upper sessile 



4b4. (.'. lax., V. pat. 



4S6. C. lax. 

 V. Mich. 



4S6. C. lax. 

 V. 8tvl. 



