OBDEB 155. CYPE RACEME. 757 



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

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



70 C. leucoglochin Ehrh. Spike about 4-flowered, with 1 or 2 3 flowers at 

 the apex ; p&rig. lanceolate, subtriquetrous and tapering, much reflexed, twice 

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

 leaves. In Ashfield 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 

 g reen . jf. States and Brit. Am. 



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

 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 the 



? spike. Common in woods. Flowers early in the spring. 



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

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

 below ; ? spikes 1 to 4, the cauliue one peduncled, remote from the staminatc, 

 with some $. 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, equaling or surpassing the glume ; culm 6 to 10' slender, triquetrous, 

 much shorter than the flat, rather wide radical leaves. Fla. 



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

 monly single, stanieniferous 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 ; 2 glumes ovate and acute, tho lower ones long and leaf- 

 like, much surpassing the stem. On dry grounds, common throughout the 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. SteudSlii Kth. (B. t. 96.) Sts. or radical ped. 18' 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 oritice; ? glumes usually long and leafy; Ivs. smooth, soft, narrow, 

 longer iar than, tho culrrs. Jefferson Co., X. Y., and in Ohio and the Western 

 States. 



76 C. Backii Boott. (t. 97.) Ped. radical, 1 if 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 

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

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

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

 ferent. The first (Xo. 74) is the slenderest. 



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

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

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

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

 spikes pedunculate. Large and fine. It is C. typhina MX. when only one spike 

 is present. X. Eng. to 111. and southward. 



fi. (C. TYPHIXOIDES 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 iluin the ovate, acutish, 

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

 X. II. (Oakes), WiUoughby Mt., Tt. (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; ptriy. oblong-obovate. hairy, apiculate, entire at orifice, 



