343 



SEDGE FAMILY. 



Carex alopecoidea sparsispicata Dewey, Am. lotirn Sri (II ) 

 Spikes distinctly separated. Southeastern Michigan 



159. Carex gravida Bailey. Heavy Sedge 

 (Fig. 829.) 



Care.i gravida Bailey. Mem. Torr. Club, i: 5. i88q. 

 Can i -gravida var. laxifolia Bailey, loc. cit. 6. 1880, 



Light green, culms slender, i#-3 tall, sharply 

 3-angled, erect, rough above. Leaves flat, i#"-3" 

 wide, spreading or ascending, equalling or shorter 

 than the culm; bracts filiform, usually very short; 

 spikes several, in an oblong or ovoid-oblong dense 

 heavy head \'-\y z ' long, pale, subglobose, thestami- 

 natc flowers terminal; perigynia flat, spreading, 

 broadly ovate or suborbicular, i^ // -2 // long, at least 

 \" wide, rounded at the base, sessile or short-stalked, 

 narrowed into a 2-toothed beak about one-third as long 

 as the body, several-nerved on the outer face or nerve- 

 less; scales ovate-lanceolate, acute, cuspidate orshort- 

 awned, about as long as the perigynia; stigmas 2. 



Illinois to South Dakota and Nebraska. May -July. 



160. Carex vulpinoidea Michx. Fox Sedge. (Fig. 830.) 



Care.i vulf>iiu>id,-a Muhx Fl lU.t \m j 169. 



Culms slender, stiff, sharply j-angled, roogh 

 above, i-3 tall. Leaves i ule. elon- 



gated, often exceeding the culm; bracts bristle-like. 

 short or sometimes 2'-3' long; (pikes ovoid-oblong. 

 densely flowered, 2"-4" long, very numerous m 

 compact or somewhat interrupted clutter. S'-S' 

 long, the lower ones sometime* compound, stain i 

 nate flowers terminal; perigynia ovate or the body 

 broader than long, less than i" long, rather more 

 than Y*" wide, greenish brown, flat, severs I -nerved 

 on the outer face, nerveless or t \ nerved on the 

 inner, ascending or spreading, tipped with a lanceo- 

 late 2-toothcd beak alx>ut half as long as the body; 

 scales lanceolate, acuminate or awncd, about a* 

 long as the perigynia, but narrower; stigmas a. 



In swamp- and wet meadow*. New Brunswick to 

 Manitoba, smith t Florida. Louisiana, Nebraska and 

 Texas. Ascends to 2500 ft. in Virginia Junr An* 



161. Carex xanthocarpa Bicknell. Yellow- fruited Sedge. 



Care.r .i-ani/iocarpa Bicknell, Bull. Torr. Club, 20: 22. 



1896. 



Culms rather stout, rough above, i-5 tall, 

 much longer than the leaves. Leaves i}4"-3" 

 wide; head oblong or ovoid, usually dense, %'-2)4' 

 long; spikes numerous, ovoid, many-flowered, 

 short; staminate flowers terminal; bracts mostly- 

 short and inconspicuous; perigynia bright yellow, 

 plano-convex, ovate-elliptic, about \W long, with 

 a narrowed or cuneate base and a short minutely 

 2-toothed beak, nerveless, or obscurely few-nerved 

 on the outer face; scales acuminate, short-awned. 



In fields, Massachusetts to New York and Ohio. 

 jnne-Aug. 



Carex xanthocarpa annectens Bicknell, Bull. Torr. Club, 

 33: 22. 1896. 



Lower and slender; leaves i"-2" wide; head not over 

 iK' long; bracts usually numerous and longer thai^tl 

 globose spikes; perigynia ovate or suborbicular. 

 dant in the vicinity of New York. 



Abun- 



