Order 155.— CYPERACE.E. Y57 



obtuse, and rarely mucronate glumo; st. 4 — 12', very slender, with setaeeou3 and 

 8iibradieal leaves. — Common in wet, cold grounds. (C. microstachya M.v.) 



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

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

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

 leaves. — In AshOeld and llawley, Mass, in u marsh (Porter.) C. pauciflora Light- 

 foot.) 



71 C. obtusata Lilj. (Schk. fig. 159.) <$ Glumes oblong, obtuse, white; perig. 

 about 4, ovaie-globous, or ellipsoid, tapering-rostrate, smooth, scarioua at the orifice, 

 a little longer than tho ovate, acute, membranous glume; culm 2 to C, erect, leafy 

 below, longer than the lvs., with tho fruit nearly black in maturity, color pale 

 green. — N. States and Brit. Am. 



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

 peduncles ; psrig. obovate, triquetrous, recurved at the apex, commonly glabrous, a 

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

 — 12'. triangular, rather procumbent; sta. sometimes removed a littlo from tho 



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 emargiuate, submucronato glumes; $ spike tapering 

 below ; 2 spikes 1 to 4, tho caulino one peduncled, remote from the staminate, 

 with some $ fl3. 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 tho glumo; culm G to 10' slender, triquetrous, 

 much shorter than the flat, rather wide radical haves. — Fla. 



74 C. Wildenowii Schk. (B. t. 95.) Sts. or radical ped. 1 — 3; spiko 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 the base and 

 conic-rostrate above ; 2 glumes ovato and acute, tho lower ones long and leaf- 

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

 — One variety has tho $ spike distinct; another is destituto of tho long and leafy- 

 scales, and i3 frequent at the North a3 well as in Fla. 



75 C. Steudelii Kth. (B. t. 9G.) Sts. or radical ped. 1 — S' long; spike com- 

 monly single, with abend 12 sterile fis. above; perig. 2 or 3, scabrous alo-ve; sub- 

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

 an obliquo orifice; 2 glumes usually long and leafy; lvs. smooth, soft, narrow, 

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

 States. 



76 C. Backii Eoott. (t. 97.) Ped. radical, 1 — if high, stiff, thick, or large; 

 spike single, with about 3 sierde fts. above ; perig. ovate, glvbous, smooth throughout, 

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

 articulated to tlie fruit; $ glumes usually long and leaf-like, inclosing tho fruit; 

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

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

 ferent. Tho 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 $ flowers, all very densely flowered; perig. ovate, 

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

 than the lanceolate glumo; cm. 1 — 2f, slender for tho large spiko or spikes; lower 

 spikes pedunculate. — Large and fine. It is C. typhina Mx. when only one spiko 

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



(3. (C. typiiixoides Schw.) Spikes 2, tho lower on a very long pedunclo, 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, 

 scar bus dark purple glume; st. 4 — 10', erect; lvs. flat and long. — White Mts., 

 N. H. (Oakes), Wiiloughby Mt., Vt. (Wood), Drummond'a Isle, Mich, and north- 

 ward (Carey). 



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

 with a scale-like Iract; a $ spike en one culm and a 2 spike (or 2) on another, 

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



