3 So 



CYPERACEAE. 



VOL. I. 



5Q. Carex Crawfordii Fernald. Crawford's 

 Sedge. Fig. 926. 



C. scoparia var. minor Boott, 111. Car. 3 : 116. pi. 369. 1862. 

 C. Crav-'fordii Fernald, Proc. Am. Acad. 37 : 469. 1902. 

 C. Crawfordii var. rigcns Fernald, Proc. Am. Acad. 37 : 470. />y 

 1902. 



Culms erect, acutely triangular and somewhat rough- 

 ened above, slender but stiff, s'-24' high, in dense 

 clumps. Leaves V'-\\" wide, shorter than the culm; 

 lower one o.r two bracts usually developed, but incon- 

 spicuous, shorter than head ; spikes 3-12, light brownish, 

 blunt, densely many-flowered, oblong, 2.\"-^k" long, 

 \\"-2\" wide, rather closely aggregated into an ovoid 

 to linear-oblong head usually 6"-i3" long and 2 "-4" 

 wide ; perigynia erect-ascending, subulate, the margin 

 at base nearly obsolete, rounded at base, 2" long, about 

 i" wide at the base, distended over achene, tapering into 

 a narrow rough 2-toothed beak, shorter than the ob- 

 scurely nerved body ; scales lanceolate, acute or acumi- 

 nate, light brown, dull, about as wide as but a little 

 shorter than the perigynia ; stigmas 2. 



In open places, Newfoundland to British Columbia, Con- 

 necticut, Michigan and Washington. June-Sept. 



60. Carex scoparia Schk. Pointed Broom Sedge. Fig. 927. 



Carex scoparia Schk.: Willd. Sp. PI. 4: 230. 1805. 



C. scoparia var. moniliformis Tuckerm. Enum. Method. 8, 17. 



1843. 

 C. scoparia var. condensa Fernald, Proc. Am. Acad. 37 : 468. 



1902. 



Culms slender, erect, roughish above, i-22 tall. Leaves 

 less than 13" wide, those of sterile shoots not very numer- 

 ous, erect or ascending ; lower bract bristle-form or want- 

 ing; spikes 3~io, oblong, narrowed at both ends, brownish 

 or straw-colored, 3"-8" long, 2"~3" in diameter, densely 

 many-flowered, varying from closely aggregated to scat- 

 tered ; staminate flowers basal ; perigynia lanceolate, very 

 thin, ascending or erect, 2" -3$" long, rather less than i" 

 wide, the tips appressed, narrowly wing-margined, several- 

 nerved on both faces, tapering into the serrulate 2-toothed 

 beak; scales thin, brown, acute or acuminate, shorter than 

 the perigynia ; achenes \" long ; stigmas 2. 



In moist soil, Newfoundland to Washington, Florida and Col- 

 orado. Ascends to 6200 ft. in North Carolina. July-Sept. 



61. Carex tribuloides Wahl. 



Blunt Broom Sedge. 



Fig. 928. 



Carex tribuloides Wahl. Kongl. Vet. Acad. Handl. (II.) 24: 



145. 1803. 



Carex lagopodioides Schk. ; Willd. Sp. PI. 4,: 230. 1805. 

 C. tribuloides var. turbata Bailey, Mem. Torr. Club I : 55- 



1889. 



Bright green, culms usually stout, erect, roughish above, 

 i'-3* tall. Leaves flat. liK'V wide, shorter than or the 

 uppermost overtopping the culm, those of sterile culms very 

 numerous, widely spreading, the sheaths loose ; lower bract 

 bristle-form, sometimes elongated ; spikes 6-20, generally 

 obovoid or top-shaped, but varying to suborbicular, blunt, 

 densely clustered or sometimes separated, 3^"-6" long, 

 3 "-4" thick ; staminate flow r ers basal ; perigynia lanceolate, 

 thin, sometimes distended over achene, greenish brown, flat, 

 ascending or erect, the tips not spreading or recurved, if"- 

 2*" long, about I" wide, several-nerved on each face, with 

 a sharply 2-toothed, rough wing-margined beak; scales 

 lanceolate, straw-colored, acute, about half as long as the 

 perigynia; achenes short-oblong, 5" long; stigmas 2. 



In meadows. New Brunswick to Saskatchewan, Florida and 

 Arizona. Ascends to 2500 ft. in Virginia. July-Sept. 



