Obdeb 165.— CTPEEACB^. 757 



obtuse, and rarely nraoronate glume; st. 4 — 12', very slender, with setaceous and 

 subradical leaves. — Commou in wet, cold grounds. (C. miorostacliya Mx.) 



70 C. leuoogloohin Ehrh. Spike about 4-flowered, with 1 or 2 S flowers at 

 the apex; perig. lameolaie, subtriquetrous and tapering, much reflexed, twice 

 longer than the oblong-lanceolate glume ; culrn 3 — 8', with subradical and linear 

 leaves. — In Ashfield and Hawley, Mass, in a marsh (Porter.) 0. pauciflora Light- 

 foot.) 



71 C. obtus^ta Lilj. (Sehk. fig. 159.) J Glumes oblong, obtuse, white; perig. 

 about 4, ovate-globous, or ellipsoid, tapering-rostrate, smooth, scarious at the orifice, 

 a little longer than the ovate, acute, membranous glume ; culm 2 to 6', erect, leafy 

 below, longer than the Ivs., with the fruit nearly black in maturity, color palo 

 green. — N. States and Brit. Am. 



72 C. pedunoulata Muhl. Spikes about 5, 3-sided, distant, on slender, recurved 

 peduncles ; perig, oiovate, triquetrous, recurved at the apex, commonly glabrous, a 

 little longer than the oblong or obovate, mucronate, finally brown glume ; culm 4 

 — 12', triangular, rather procumbent; sta» sometimes removed a little from the 



S spike. — Common in woods. Flowers early in the spring. 



73 C. Baltzellii Chapm. (B. t. 41.) Spikes cylindric, long, dark-colored, with 

 oblong-obovate, obtuse or emarginate, submucronate glumes; i spike tapering 

 below ; ¥ spikes 1 to 4, the cauliue one peduncled, remote from the staminate, 

 with some S fls. at its apex, the others on long, slender and nearly radical pedun- 

 cles, all lax-flowered ; perig. oblong-obovate, obtuse, short-rostrate, pediceled, veined, 

 pubescent, equahng or surpassing the glume; culm 6 to 10' slender, triquetrous, 

 much shorter than the flat, rather wide radical leaves. — Pla. 



74 C. 'Wildenowii Sehk. (B. t. 95.) Sts. or radical ped.'l — 3; spike com- 

 monly single, stameniferous above, or the stamens removed a little ; perig. 5 to 9, 

 scabrous, alternate, loose, oblong and inflated a little, tapering at the base and 

 conic-rostrate above ; 5 glumes ovate and acute, the lower ones long and leaf- 

 like, much surpassing the stem. — On dry grounds, common throughout tlie U. S. 

 — One variety has the i spike distinct; another is destitute of the long and leafy 

 scales, and is frequent at the North as well as in Ha. 



75 C. Steud^lii Kth. (B. t. 96.) Sts. or radical ped. 1 — 8' long; spilee com- 

 monly single, with about 12 sterile fls. above; perig. 2 or 3, scabrous above; sub- 

 globous or ellipsoid and inflated, alternate, stipitate, terete; conic-rostrate, with 

 an oblique orifice ; ? glumes usually long and leafy ; Ivs. smooth, soft, narrow, 

 longer far than the culms. — Jefferson Co., N. T., and in Ohio and the Western 

 States. 



76 C. Backii Boott. (t. 91.) Ped. radical, 1 — 4f high, stiff, thick, or large; 

 spike single, with about 3 sterile fls. above ; perig. ovate, globous, smooth throughout, 

 2 to 4, conic-rostrate, entire at the orifice, when mature pear-shaped, the beak 

 arOmlated to the fruit; ? glumes usually long and leaf-like, inclosing the fruit; 

 Ivs. radical, flat, thick, rough or scabrous and short. — Jefferson Co., N. Y. and 

 Arc. Am. — The two preceding species' are closely related, and yet look very dif- 

 ferent. The first (No. 74) is the slenderest. 



77 C. squarrosa L. Spikes 1 — 4, oblong, cylindric, obtuse, upper one attenuated 

 below at first by the decurrent S flowers, all very densely flowered ; perig. ovate, 

 subglobous, long-rostrate, 2-toothed, horizontal, glabrous and subsquarrous, longer 

 than the lanceolate glume; cm. 1— 2f, slender for the large spike or spikes; lower 

 epikes pedunculate. — Largo and fine. It is 0. typhina Mx. when only one spike 

 is present. — ^N. Eng. to 111. and southward. 



/3. (C. TYPHINOIDES Schw.) Spikes 2, the lower on a very long peduncle, and 

 both longer and smaller. 



78 C. scirpoidea Mx. Spike oblong, cylindric, acutish; $ glume oblong, ob- 

 tusish; perig. ovate (oval), subrostrate, pubescent, longer than the ovate, acutish, 

 scarious dark purple glume; st. 4 — 10', erect; Ivs. flat and long. — White Mts., 

 K. H. (Oakes), Willoughby Mt., Vt. (Wood), Drummond's Isle, Mich, and north- 

 ward (Carey). 



79 C. Boottiana Benth. (B. t. 42.) Spikes oblong-cylindric, attenuate at base, 

 with a scale-liJce bract ; a $ spike, on one culm and a ? spike (or 2) on another, 

 sparse-flowered below; perig. oblong-obauate, hairy, apiciiate, entire at orifice, 



