CYPERACEAE (SEDGE FAMILY) 



245 



long, very strongly nerved, the nearly entire short beak vsuallv bent ■ acalP 

 thin and ponited, about | the length of the perigynia.— Woods and ' 



meadows, Vt. to Ont., and south w. June, July. 



I 



C. Crawei. 



Fig. 49H. 

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

 tillate spikes more slender, 3-5 mm. thick; perigynia obluny.' (C 



Shriveri Britton.) —Me. to ISask., s. to Va * ^99. Cgran.. 

 O., Mich., and Wise. Fig. 499. *' v. HaU-aoa. 



A }^\ ^' 9y^''"^^\ I^ewey. Low, strict, stoloniferous, 

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

 exceeding the culm; spikes 2-5, scattered, the lovei^t radi- 

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

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

 spike generally peduncled ; perigynia ovoid, 

 usually resinous-dotted, nearly nerveless 

 or few-nerved, very short-pointed, longer 



than the obtuse or short-pointed scale. 



Moist places, in calcareous districts. Cape 

 Breton L 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 short stout 

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

 — Sandy shores, Long Island and Coney Island, N. Y. ; Norfolk, 501. 0. exieii.sa. 

 Va. June-Aug. (^^at. from Eu.) Fig. 501. 



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

 yellowish throughout; leaves flat, 2-5 mm, 

 wide, mostly shorter than the culms, bractn 

 prominent, divergent; pistillate spikes 2-C, 

 aggregated, or the lowest distinct, subi^lohose 

 or short-cylindric, 0.8-1.5 cm. 

 I 1^^^^ ^ If ^iJT' lo"§ ; perigynia ovoid, yellow- 



ilr^^m n II .Will/ brown, produced into a long 



deflexed beak, strongly nerved, 

 twice or thrice longer than the 

 blunt brown scale. — Damp 

 places, Nfd. to Sask. and Alb., 

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

 Mich., Minn., and Mont. 

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



Var. rectir6stra Gaudin. Low and slender ; leaves 

 1-3 mm. wide ; the smaller straightish perigynia 

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

 — Nfd. to R. 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.) — 

 Gasp^ 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- 

 m. C. Oederi. Aug. (Eu.) FiG. 606. — Hybridizes with C. Mva, 



502. C. flava 



June-Sept. 



504. C. tiava, 

 V. elatior. 



