244 



CYPERACEAE (SEDGE FAMILY) 



493. C. conoidea. 



494. 0. grisea. 



places, N. B. to Ont., s. to Pa. and la.; and in the mts. to N. C. 

 May-Aug. Fig. 41)3. 



132. C. grisea Wahlenb. Stout, 3-8 dm. high ; leaves 3-7 nrnk 

 broad, slightly glaucous ; bracts broad and leaf- 

 like, diverging, very much exceeding the culm ; 

 staminate spil^e small and sessile ; pistillate 

 spikes 3-5, oblong, 0.7-2.5 cm. long, 4-7 mm. 

 thick, the highest two usually contiguous to the 

 staminate spike and sessile, the others somewhat 

 remote and peduncled (but not from the lowest 

 axils), all erect; perigynia oblong, pointless, 

 marked with impressed nerves, turgid and cylin- 

 dric, appressed-ascending, 4.5-5.5 mm. long, all 

 but the lowest longer than the narrow, cuspi- 

 date or blunt, nerved scale. — Low woods and 

 meadows, s. Me., westw. and southw. May, 

 June. Fig. 494. Var. RfoiDA Bailey. Much 

 more slender ; leaves scarcely half so wide ; the 

 bracts, especially, much narrower and shorter 

 and more erect ; spikes slender ; perigynia 

 scarcely inflated, triangular-oblong, bearing a 

 beak-like point, 2-ranked. (Var. angustifolia Man. ed. 6, not 

 Boott.) — Local, Mass. and N. Y., southw. Var. glob6sa 



Bailey. Very slender ; spikes few-flowered, often with but 2 or 3 



t perigynia ; perigynium short, inflated, very blunt, nearly globose or 



obovoid ; scale short, not prominently ^cuspidate or 

 the upper ones wholly blunt. — Mo., Kan., and 

 southw. 



Var. angustifblia Boott. Leaves rather narrow, 

 495. c. gri3., j^^g ^^^ erect ; staminate spike often peduncled ; 

 ^' ^°^' pistillate spikes very scattered, all more or less 

 st&lked, the lowest borne from near the base; perigynia tri- 

 angular-oblong, hard, longer than the cuspi- 

 date ascending scale. ( 0. amphibola Steud. ) 

 — D. C. to Fla. and Tex. Fig. 495. 



133. C. glaucbdea Tuckerm. Lax or some- 

 what strict (1-6 dm. high), densely glaucous ; 

 leaves flat, thick and firm, 0.5-1 cm. wide ; 

 spikes as in C. grisea ; perigynia firm, not 

 inflated, prominently 

 iuipressed-nerved, 

 glaucous, 3-4 mm 

 long, mostly exceed- 

 ing the short-cuspi- 

 date or blunt thin 497^ <.. flaccosperma. 

 and appressed scale. 



— Upland woods and rich meadows, e. Mass. and Vt. to 

 Ont., and southw., local. June, July. Fig. 496. 



134. C. flaccosperma Dewey. Similar ; leaves slightly 

 or scarcely glaucous, thinner ; perigynia 4.5-6 mm. long, 

 2-3 times exceeding the brownish scales. — Kich woods 

 and swamps, N. C. to Mo., and southw. May, June. 

 Fig. 497. 



135. C. granul^ris Muhl. Erect or spreading, 2.5-9 

 dm. high, somewhat glaucous ; leaves flat, the basal 5-12 

 mm. wide ; bracts broad and long, much exceeding the 

 culm ; spikes 2-4, scattered, all but the upper peduncled, 

 erect or ascending, compact, short-ellipsoid to cylindric, 

 0.8-3 cm. long, 5-6 mm. thick; staminate spike small and 



granuiaris. usually sessile ; perigynia ovoid to globose^ 2-3.6 mm. 



glaucodea. 



