CYPEBACEAE (SEDGE FAMILY) 



23? 



5taminate spike clavate, 1-2 cm. long, sessile or short-stalked, iisuallv reddish 

 rarely paler ; perigynia puberulent, globose to obovoid, the short beak \ to 4 al 

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

 soil, s. Me. to Alb., and south w. May, June. r>G. 453. I 



Var. Iuc5rum (Willd.) Fernald, Perigynia puberulent to ghi- i\ 



brate, the conspicuous slender beak about as long as the body. — Sf 



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

 May-July. Fig. 454. * * •*^- <-" I't-m.., 



101. C. pub§scens Muhl. Lax, 2-8 dm. high, pubescent through- ''' ^"'^'■"'"• 

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

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

 short-peduncled, short-cylindric, 0.7-2.3 cm. long, loosely rloic- 

 ered, erect; perigynia very hairy, sharply S-angled, conspicu- 

 ously beaked and minutely toothed, straight, about the length 

 of the truncate and rough-cuspidate thin scales. —( 'opses and 

 moist meadows, N. E. to Ky., and w^stw., local. May, June 

 Fig. 455. 



102. C. CARTOPHTLLEA Lat. SUffhthj stolonifm-ous, stiff; 

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

 than the culm ; staminate spike prominently 

 465 C pubescens ^lavate, mostly sessile ; pistillate spikes 2-3, all 

 contiguous, sessile or the lowest very short- 

 peduncled and subtended by a bract scarcely as long as it'^rlf. 

 ail ellipsoid or short-cylindric, the lowest 0.7-1.5 cm. long; peri- 

 gynia trigonous-obovoid, the very short bcfik 

 entire or erose, thinly hispid-hirsute. (C. praS' 

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

 June. (Nat. from Eu.) Fig. 456. .-„ „ , 



103. C. GLAUCA Scop. Very stoloniferous ^-carjopti. 

 and glaucous; the culms s^i/f, 1-6 dm. high; leaves shorter, 

 firm, w'.th revolute scabrous margins, 3-6 

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

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

 duncled ; pistillate 1-3, cylindric, 1.5-3.5 

 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. 

 from Eu.) Fig. 457. 



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

 glaucous and stoloniferous; culms 1.5-6 

 dm. high ; leaves narrow, often becoming 4^_ q livida. 

 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 



457. C. glauca. 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. panicea L. Strict, often stiff, glaucous-blue, i.o-6 

 dm. high ; cnlm 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. tliick ; 

 perigynia ovoid, yellow or purple, somewhat turgid, scarcely 

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



