514 CXPBBAC x.e. (sedge family.) 



or recurved; spikes small, ovate, 3 -9 in a cluster; scales spotted; scales of 

 the perianth very thin, the nrrves at length free and bristle-like below ; nut ob- 

 long, contracted into a short neck. (Kyllingia maculate, Michx.) — Springy or 

 miry places, Florida to North Carolina. July -Sept. — Culms 4' -8' high. 

 Spikes l"-2" long, green. 



6. FUIRENA, Rottb. 



Spikes many-flowered. Scabs imbricated in many rows, awned at the apex. 

 Perianth consisting of three petal-like stalked scabs alternating with as many 

 bristles. Stamens 3. Style 3-eleft. Nut 3-angled, raised on a stalk, and pointed 

 with the persistent base of the style. — Culms terete, jointed. Spikes single or 

 clustered, lateral and terminal. Scabs hairy. 



1. F. scirpoidea, Vahl. Rhizoma thick ana creeping; culms slender; 

 leaves reduced t<> pointed sheaths, smooth ; spikes 1-3, terminal, ovate, sup- 

 ported by a small bract-like involucre; scales obovate, 9-nerved, pointed with a 

 short erect awn; stalks of the oval barely pointed petal-like scabs longer than 

 the hispid bristles. — 'Wet sandy places, near the coast, Florida and Georgia. 

 May Sept. U— Culms 1° high. 



2. F. squarrosa, Michx. Culms clustered, smooth, or pubescent near 

 the summit; leaves flat, linear or linear-lanceolate, the margins, like the lower 

 sheaths, hairy; spikes oblong, in lateral and terminal clusters; scales oblong- 

 obovate, with the long pale awn recurved ; petal-like scales ovate, acute ; bristles 

 as long as the stalk of the obovate nut. — Var. hispida. (F. hispida, Ell.) 

 Leaves, gheatb^S, and upper portion of the culm bristly-hairy; petal-like scab's 

 acuminate ; bristles nearly as long as the nut. — Swamps, Florida, and north- 

 ward. July-Sept. lj. — Culms §° - 2° high. Leaves 2' - 5' long. Terminal 

 cluster occasionally compound. 



7. ELEOCHARIS, R. Brown. Spike-Rush. 



Spikes many- (rarely 2-4-) flowered. Scales imbricated on all sides of the 

 rachis, or somewhat 2-ranked, the lowest usually empty, bract-like, and persistent. 

 Perianth of 3 - 8 bearded bristles, occasionally wanting. Stamens 1-3. Stvle 

 2 -3-ebft. Nut compressed, biconvex, or 3-angled, crowned with the persistent 

 jointed base of the style (tubereled). — Commonly perennials, with creeping 

 rootstoeks. Culms jointless, leafless, sheathed at the base, bearing at the apex a 

 single Bpike. 



( 1. ELEOCHARIS Proper. Spilces many-Jlowered : scales imbricated in several 



rows. 



cylindrical, scarcely Hacker than the soft cellular eulme: nut biconvex, pitted 



nr wrinkled in longitudinal lines, 



+- Scales round) (1, thick and faintly m rved : style 8-cA /? r bristles (>. sjHirimdy bearded 



or smoothish, as long as tin nut. (Lhnnoehloa, Nees.) 



1- E. equisetoides, Torr. Culms stout, terete, knotted by eross parti- 

 tions, ronghisfa ; scales pale, rouiul-ovate, obtuse or the upper acute, ICVioUS on 



