Oeder 155.— CYPBRACBjE. Y5T 



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

 subradical leaves. — Common in wet, cold grounds. (C. microstachya Mx.) 



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

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

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

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

 foot.) 



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

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

 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 pale 

 green. — N. States and Brit. Am. 



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

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

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

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

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



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

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

 below ; ? spikes 1 to 4, the cauline ouo peduncled, remote from the staminate, 

 with some S 9s. 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 gr surpassing the glume ; culm 6 to 10' slender, triquetrous, 

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



74 C. WildenoTWii Schk. (B. t. 95.) Sts. or radical ped. 1 — 3; spike com- 

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

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

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

 like, much surpassing the stem. — On dry grounds, common throughout the 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 Pla. 



75 C. SteudSlii 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 ; S glumes usually long and leafy ; Ivs. smooth, soft, narrow, 

 longer tar than the culms. — Jefferson Co., N. Y., and in Ohio and the 'Westem 

 States. 



76 C. Backii Boott. (t. 97.) 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 

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

 Ivs. radical, flat, tliick, rough or scabrous and short. — Jefferson Co., N. T. 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, cylindrio, obtuse, upper one attenuated 

 below at first by the 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.- — Large 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. 



7S C. scirpoidea Mx. Spike oblong, cylindrio, acutish ; i glume oblong, ob- 

 tusish; perig. ovate (oval), subrostrate, pubescent, longer than tlie ovate, amtish, 

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

 N. H. (Oakes), WiUoughby Mt, Vt (Wood), Drummond's Isle, Jlich. and north- 

 ward (Carey). 



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

 with a scale-like brad ; a i spike on one culm and a S spike (or 2) on another, 

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



