OBDBR 155. CYPERACE^E. 757 



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

 subradical leaves. Common in wet, cold grounds. (C. microstaehya MX.) 



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

 the apex; perig. lanceolate, subtriquetrous and tapering, much reflexed, twico 

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

 leaves. In Ash field and Hawley, Mass, in a marsh (Porter.) C. pauciflora Light- 

 foot.) 



71 C. obtusata Lilj. (Schk. fig. 159.) $ 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. pedunculata Muhl. Spikes about 5, 3-sided, distant, on slender, recurred 

 peduncles ; perig. obovate, 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 tho 



$ 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; $ spike tapering 

 below ; ? spikes 1 to 4, tho caulino one peduncled, remote from the staminato, 

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

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

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

 much s/wrter than the flat, rather wide radical leaves. Fla. 



74 C. Wildenowii Schk. (B. t. 95.) Sts. or radical ped. 13 ; spike com- 

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

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

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

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

 One variety has the $ spike distinct ; another is destitute of the long and leafy- 

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



75 C. Steuddlii Kth. (B. t. 96.) Sts. or radical ped. 1 8' long; spike 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 lar than tho culms. Jefferson Co., N. Y., and ia Ohio and tho Western 

 States. 



76 C. Backii Boott. (t. 97.) Ped. radical, 1 4f high, stiff, thick, or large; 

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

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

 articulated to the fruit ; $ glumes usually long and leaf-like, inclosing tho 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. squarr6sa L. Spikes 1 4, oblong, cylindric, obtuse, upper one attenuated 

 below at first by tho decurrent $ 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 

 spikes pedunculate. Largo and fine. It is C. 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 ; $ glumo oblong, ob- 

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

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

 N. H. (Oakes), Wiiloughby Mt., Yt. (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-like Iract ; a $ spike on one culm and a $ spike (or 2) on another, 

 sparse-flowered below; perig. oUong-obovate, hairy, apiculate, entire at orifice, 



