3 8o 



CYPERACEAE. 



Vol. I. 



59. Carex Crawfordii Fernald. Crawford's 

 Sedge. Fig. 926. 



,C. scoparia var. minor Boott, 111. Car. 3: 116. pi. 360. 1862. 

 C. Crawfordii Fernald, Proc. Am. Acad. 37: 469. 1902. 

 C. Crawfordii var. rigens Fernald, Proc. Am. Acad. 37 : 470. 

 1902. 



Culms erect, acutely triangular and somewhat rough- 

 ened above, slender but stiff, s'~ 2 A' high, in dense 

 clumps. Leaves i"-lj" wide, shorter than the culm; 

 lower one or two bracts usually developed, but incon- 

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

 blunt, densely many-flowered, oblong, 2$"-$$" long, 

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

 to linear-oblong head usually 6 '-13" long and z"~4" 

 wide ; perigynia erect-ascending, subulate, the margin 

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

 4" 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: 23°- 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, 4°-2i° tall. Leaves 

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

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

 ing; spikes 3-10, 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"-3i" long, rather less than 1" 

 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 i" 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 1 : 55. 



1889. 



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

 i'~3i° tall. Leaves flat, i4"~4" 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 stfborbicular, blunt, 

 densely clustered or sometimes separated, 34 "-6" long, 

 3" _ 4" thick; staminate flowers basal; perigynia lanceolate, 

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

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

 24" 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, i" long; stigmas 2. 



In meadows, New Brunswick to Saskatchewan, Florida and 

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



