CYPERACEAE (SEDGE FAMILY) 



245 



499. C. gran., 

 V. Haleana. 



500. C. Crawei. 



501. C. extensa. 



long, very strongly nerved, the nearly entire short b^ak usually bent; scale 

 thin and pointed, about h the length of the perigynia. — Woods and 

 meadows. Vt. to Ont., and southw. June, July. Fig. 498. 



Var. Haleana (Olney) Porter. Lower and more slender ; pis- 

 tillate spikes more slender, 3-5 7nm. thick; peiigynia oblong. (C. 



Shriveri Britton.) — Me. to Sask., s. to Va., 

 O., Mich., and Wise. Fig. 499. 



13(5. C. Crawei Dewej^ Low, strict, stoloniferous, 

 0.5-4 dm. high ; leaves 2-4 mm. wide ; bracts scarcely 

 exceeding the culm ; spikes 2-5, scattered, the lovest radi- 

 cal or nearly so, short-peduncled or the upper sessile, 

 erect, compact, 1-2.7 cm. long; staminate 

 spike generally peduncied ; perigynia ovoid, 

 usnally rcsinons-dotted, nearly nerveless 

 or few-nerved, veiy short-pointed, longer 

 than the obtuse or short-pointed scale. — 

 Moist places, in calcareous districts, Cape 

 Breton I. to Man., locally s. to n. Me., 

 n. Pa., the Great Lake region, and Kan. 

 June, July. Fig. 500. 



137. C. EXTENSA Good. Slender but 

 strict, 3-8 dm. high ; leaves involute ; spikes 

 2-4, the lowest remote and short-peduncled, 

 the remainder approximate and sessile, 

 short (0.8-2.5 cm. long) and compact; 

 perigynia ovoid, narrowed at the base, very 

 strongly nerved, ascending, the shoi't stout 

 beak sharply" toothed, longer than the blunt brown-edged scale. 

 — Sandy shores, Lpng Island and Coney Island, N. Y. ; Xorfolk, 

 Va. June-Aug. (Nat. from Eu.j Fig. 501. 



138. C. flava L. Tufted, 2-8 dm. high, 

 yellowish throughout; leaves flat, 2-5 mm. 

 wide, mostly shorter than the culms, bracts 

 prominent, divergent; pistillate spikes 2-6, 

 aggregated, or the lowest distinct, subglobose 

 or short-cylindric, 0.8-1.5 cm. 

 long ; perigynia ovoid, yellow- 

 brown, produced into a long 

 deflexed beak, strongly nerved, 

 ticice or thrice longer than the 

 blunt brown scale. — Damp 

 places, Kfd, to Sask. and Alb., 

 s. to Ct., n. N, J., w. Pa., 

 Mich., Minn., and Mont. 

 (Eu.) Fig. 502. — Hybridizes with C. Oederi. 



Var. rectirostra Gaudin. Low and slender ; leaves 

 1-3 mm. wide ; the smaller straightish perigynia 

 greenish or greenish-yellow. (Var. graminis Bailey.) 

 — Xfd. to K. I. and Mich. (Eu.) Fig. 503. 



Var. elatior Schlecht. Pistillate spikes remote. 

 6-9 mm. thick, the curved perigynia spreading or 

 usually very retrorse. (C lepidocarpa Tausch.) — 

 Ga.sp^ Co. , Que., to R. L and N. Y. (Eu. ) Fig. 504. 

 139. C. Oederi Retz. Similar, plant greenish, 

 0.5-3 dm. high; leaves 1-3 mm. wide; pistillate 

 spikes 2—4, mostly scattered. 5-15 mm. long, 4-8 mm. 

 thick ; the plump greenish-brown short-beaked peri- 

 gynia ascending or wide-spreading, \ longer than the obtuse scale. — 

 Bogs, meadows and shores. Nfd. to Hudson Bay and Me. June- 

 Aug. (Eu.) Fig. 505. — Hybridizes with (J. flava. 



502. C. tiava 



C. flava, 

 rect. 



June-Sept. 



504. C. flava, 

 V. elatior. 



505. C. Oederi. 



