CYPERACEAE (SEDGB FAMILY) 



237 



4B4. C. penr.., 

 V. lucorum. 



stanjinate spike clavate, 1-2 cm. long, sessile or short-stalked, usually reddish, 

 rarely paler ; perigyiiia puberulent, globose to obovoid, the short beak I to ^ aa 

 long as the body; the scales usually red-tinged. — Dry or sandy 

 soil, s. Me. to Alb., and southw.. May, June. Fig. 453. J, 



Var. lucbrum (Willd.) Fernald. Perigynia puberulent to gla- ^% 



brate, the conspicuous slender beak about as long as the body. — ^(p 



Richer, usually damper soil, Me. to Mich., and the nits, of N. C. 

 May-July. Fig. 4-54. 



101. C. pubfescens Muhl. Xj&yi, 2-% dm.'hSg^ pubescent through- 

 out ; leaves flat (0.5-1 cm. wide) and soft, shorter than the 

 culm ; spikes 2-4, the upper approximate, the lower 1 or 2 

 short-peduncled, short-oylindrio, 0.7-2.3 cm. long, loosely flow- 

 ered., erect ; perigynia very hairy, sharply S-angled, con.spicu- 

 ously beaked and minutely toothed, straight, about the length 

 of the truncate and rough-cuspidate thin scales. — Copses and 

 moist meadows, N. E. to Ky., and westw., local. May, June. 

 Fig. 455. 



102. C. CARTopHTLi-tA Lat. Slightly stoloniferous, stiff; 

 the culm sometimes curved, 0.3-3 dm. high ; leaves flat, shorter 

 than the culm ; staminate spike prominently 



... „ ' , clavate, mostly sessile ; pistillate spikes 2-3, all 



155. C. pubescens. ^. ' "^ ., ^ , r^ , x 



contiguous, sessile or the lowest very short- 

 peduncled and subtended by a bract scarcely as long as itself, 

 all ellipsoid or short-cylindric, the lowest 0.7-1.6 cm. long; peri- 

 gynia trigonous-obovoid, the very short beak 

 entire or erose, thinly hispid-hirsute. (O. prae- 

 cox Jacq.) — Fields, Me. to D. Q., local. May, 

 June. (Nat. from Eu.) Fig. 456. 456. C. oaryoph. 



103. C. GLAucA Scop. Very stoloniferous 

 and glaucous; the culms siilf, 1-6 dm. high; leaves shorter, 

 firm, with revolute scabrous margins, 3-6 

 mm. broad ; staminate spikes 2 (rarely 1), 

 clavate, the terminal 2-3.5 cm. long, pe- 

 dunoled ; pistillate 1-3, cylindric, 1.5-3.6 

 cm. long, 4-6 mm. thick, remote, mostly 

 peduncled, erect ; the subglobose or ellip- 

 soid puncticulate perigynia slightly ex- 

 ceeding the oblong blunt or mucronate 

 purplish scales. — Dry open soil, local, 

 N. S., Que., and Ont. June, July. (Nat. 

 fromEu.) Fig. 457. 



104. C. livida (Wahlenb.) Willd. Very 

 glaucous and stoloniferous ; culms 1.5-6 

 dm. high ; leaves narrow, often becoming 

 involute; pistillate spikes 1 or 2, sub- 

 approximate or remote, sessile or nearly so, 

 erect, or rarely basal and long-stalked, narrow, 

 0.7-2.5 cm. long, 3-6 mm. thick ; perigynia 

 ovoid-oblong, nerved, granular, beakless, the 

 point straight or nearly so, orifice entire ; scale 



obtuse, brown- or purple-margined, mostly a little shorter than 

 the perigynia. — Bogs, chiefly in calcareous regions, Lab. and 

 Nfd. to Alaska, locally s. to Ct., N. J., Mich., Minn., etc. May- 

 July. (Eu.) Fig. 458. 



105. C. panfcea L. Strict, often stiff, glaucous-bine, 1.5-6 

 dm. high ; culm smooth; bracts broad and short, 1-6 cm. high ; 

 pistillate spikes 1-3, scattered, colored, mostly peduncled, erect, 

 rather compact or loose below, 1-3 cm. long, 5-7 mm. thick ; 

 perigynia ovoid, yellow or purple, somewhat turgid, scarcely 

 nerved, the point usually curved, mostly longer than the purple- 459. c. panicea. 



46S. C. livida. 



467. C. glauca. 



