236 



CYPERACEAE (SEDGE FAMILY) 



95. 

 wide ; 



C. deflexa Hornera. Diffuse and low. tufted; leaves soft, 1-S mm 



44S. C. deflexa. 

 smooth, the 



culms 0.2-4 dm. high, setaceous^ more or less ciii'ved or spreading. 

 little exceeding or shorter than the leaves ; staminate spike small, 

 sometimes invisible in the head ; pistillate spikes 2-3, 2-8- 

 flowered, green, or green and brown, all aggregated into a head, 

 or the lowest one slighty remote, short-pedunded and subtended 

 by a leafy bract ; radical spikes usually present ; perigynia very 

 small and much contracted below, sparsely hairy or nearly 

 beak flat and very short, longer than the scales, (Including 

 var. Deatiei Bailey.) — Open woods, clearings, and mountain slopes, Ktd" 

 to Alaska, s. to Mass., Pa., Mich., Minn.. Wash., etc. May-Aug. (Greenl.) 

 Fig. 448. 



96. C. albicans Willd. Slightly caespitose ; culms straightish, 1-5.5 dm. tall, 

 much exceeding the soft narroio (1.5-3 mm. wide) p«?e leaves; pistillate spikes 

 globose or short-ovoid, 1-3, all approximate, or the lowest slightly 

 remote, naked or subtended by a narrow bract ; staminate spike 

 sessile, often hidden in the head; perigynia ellipsoid, pubescent, 

 with a short cylindric beak, mostly exceeding the broad scales. 

 — Open woods or cool rocky banks, chiefly in calcareous regions, 

 e. Que. to the Yukon, s. to Mass., Pa., Mich., and Minn. May- 

 July. Fig. 449. ^^- ^- albicans. 



97. C. communis Bailey. Forming small tufts, never sto- 

 loniferous ; culms 1-6 dm. high, much exceeding the leaves; 

 leaves flat, becoming 2-5.5 mm. wide; inflorescence 1-8 cm. 

 long ; the 1-5 pistillate spikes mostly distinct, often remote, rarely 

 1 cm. long, the lowest often leafy -bracted ; staminate spike from 

 green to chestnut, sessile or stalked, 3.5-20 mm. long ; perigynia 

 hairy, 2.5-4 mm. long, the body subglobose to broaclly ellipsoid, 

 the base elongate and spongy, the beak broad ; scales ovate, 

 acuminate, greenish-brown to reddish, about equaling the peri- 

 gynia. (Including var. Wheeleri Bailey ; C. pedicellata Britton ; 

 C. pilulifera Fernald, not L.) — Dry open woods, etc., e. Que. 

 to B. C, s. to Pa., O., Wise, and la.; and along the mts. to 

 Ga. May-July. Fig. 450. 

 98. C. varia Muhl. hensehj tufted; leaves soft and very nar- 

 row ; the capillary culms variable in length, lax, often twice longer 

 than the leaves, 1-5 dm. long ; pistillate spikes closely aggregated, 

 or rarely somewhat loosely disjjosed but never scattered, aM strictly 

 sessile, green ; radical spikes none ; lower bract usually present ; 

 perigynia about the length of the sharp scale. — Banks and dry 

 woods. Me. to Ont., and southw. Apr.-July. Fig. 451. In 

 var. colokXta Bailey the scales ?ire purple. 



99. C. nbvae-angliae Schwein. Very slender and 

 soft, loosely caespitose, 1-4 dm. high; culms little longer than the 

 very narrow pale-green leaves ; staminate spike exceedingly narrow 

 (0.5-1 cm. long, 0.5-1 mm. thick), mostly minutely peduncled; p/sf/?- 

 late spikes 2, or rarely 3, the upper one near the base of 

 the staminate spike, the lov^er very short-peduncled 

 and remote and subtended by a leafy bract which 

 nearly or quite equals the culm, rather loosely 3-10- 

 floicered ; perigynia very narrow, small, very thin, 

 slightly hairy, the beak sharp and prominent. — Open 

 woods, Que. and N. S. to Mass. and N. Y. ; com- 

 mon northw., rare southw. June, July. Fig. 

 452. 



100. C. pennsylvanica Lam. Strongly stolonife- 

 rous, the small tufts with reddish bases and usually with persist- 

 ent brush-like tufts of fibers ; leaves 1.5-3.5 mm. broad, shorter than, 

 equaling or often exceeding the slender culms (0.5-4 dm. high); pistillate spikes 

 1-4, globose or ovoid, approximate or remote, the lowest often leafy-bracted ; 



450. C. communis. 



451. C. varia. 



io2. C. ii()\ae- 

 anfrliae. 



45o. C. penn- 

 svlvanica. 



