6 



^ Van LAXIFOLIA. 



Much larger (2 to ^j4 ft. high), the leaves broad and lax, and 

 much less conspicuously pointed than in the species; head large 

 and dense, ovoid or oblong, scarcely interrupted. 



Northern Illinois, Be6d, Martin Co., Minn., Crafty^ Fort Pierre, 

 Dakota, Hayden, Wyoming, Mc Shea. Possibly specifically dis- 

 tinct. 



3. — Carex spreta. 



^ C stylosa, Meyer, var. virens, Bailey, Proc. Amer. Acad. Arts 



and Sci. xxii. 79 (1886), 



Larger and stouter than C stylosa (18 in. high), and the 

 leaves broader and longer; spikes short and thick (a half inch or 

 less long), all closely sessile, the upper two or three contiguous 

 to the staminate spike ; perigynium very broad, thin, green, 

 nerveless, longer and much broader than the black and muticous, 

 faintly white-nerved scale. (63a). 



Sauvie's Island, Oregon, HowelL Said by Howell to form 



part of the sedge pasturage of the Columbia. 



/ 4. — Carex Eleocharis. 



One of the Vignese, perhaps allied to {7. tenella^ Schk. : Very 

 slender but stiff, half a foot high, both leaves and culm filiform and 

 smooth ; spikes two or three, each bearing from one to three 

 flowers, closely aggregated into a very small and apparently 

 monostachyous head, evidently staminate above; perigynium 

 short-ovate, turgid, flat on the inner face, marginless and nerve- 

 less, dull brown, beak entire or nearly so, as long as or longer 

 than the thin-hyaline scale (247a?). 



Saskatchewan Plains, 1872, Macotin^ No. 1665 ; distributed as 



C. glareosa^ Wahl. A singular and ambiguous little species (Fib. 



Kew. and Hb. Bailey.). 



/ 5. — Carex exsiccata. 



C. vesicaria, L., var. major, Boott, Hook. Fl. Bor. Am. li. 



221 (1840). 

 C, veszcaria, L., var. A, Boott, 111. 162 t, 537 (1867), v, s. 



Hb. Boott. 

 C. vesicaria^ L., var. lanceolata, Olney, Proc. Amer. Acad. 



Arts and Sci. viii. 407 (1872), v. s, Hb. Gray. 



Differs at once from C. vesicaria by its greater size and 

 broader leaves, thicker and more nearly sessile spikes, and par- 

 ticularly by the much longer, lance-ovate, scarcely inflated, duller 



