CVTERACE-i:. 2S5 



ceola(o, compressed, Glurjirs disticltous, sljealliin<T. Style 

 very lonji, 2 cleft. Nut with hristles at the hase. 



1 D SrATiucEUM. S/t-m striate, columnar, torctc ai the base, trinngulnr 

 above. I^'otr* linrar-Ianceu'.ntc, pointing in 3 directions ; spikclets ?{>read- 

 infi[, 6-7 flowered, forming axillary racemes. Peduncles as long as the sheaths 

 or the leaves. 



Genus III. KYLLINGI.\. 



Flowers di.slincf. nrraiifred in a ro'.indisli spike, lml)ricalo 

 Glumes 2, 1 -flowered. Palccr 2, longer tl)an the ghimes. 



1 K MoxocEPHALA. S/ewi filiform, 3-angIed. Leaves linear, heacis single, 

 inclining to one side. Involucre erin'rally 3-leaved, one of the leaves erect. 



% October, i^ower Ga. 2-12 in. 



2 K PuMiLA. S/f»i erect, triquetrou.«», glabrous, /^aiv* subulate, expand- 

 ing. Involucre usually 3-ltaved, unequal. Flcxrcrs in a terminal, nearly glo- 

 bose head. Glumes none. Paleae 2, compressed. Flowers diandrous. 



% August — Dec. Damp soils. Very common. 3-6 in. 



3 K M.\cL'LATA. Stem triquetrous, glabrous. L&ives subulate. Flowers 

 usually in 3 heads. Glume 1, lanceolate, cuneate. Palcae2, unequal, ihe 

 exterior one shorte'st. Floiccrs monandrous. 



% August— Oct. 3-5 in. 



SCIRPE.E. 



Ge.nus IV. SCIRPUS. 



Glumes imbricating the spike on all sides, one or two of the 

 outer ones occasionally without flowers. Palfa none. Seed 

 1, with bristles at its base. 



(a) Spike solitary, terminal. 



S Capillaceus. S)lem erect, and procumbent, slightly furrowed with a 

 sheath surroundin? its base. i>aie.N- none. Glumes acute. S''<'<f compres- 

 sed, obovati, wi;h 6 bristles at the base. 

 O March — June. 1-3 in. 

 2 S Trichodes Stem setaceous, glabrous. Spikes ovate-lanceolate. Glumes 

 ovate-lanceolate, nearly w hite. Seetl 3-angled, ribbed 

 O June — July Low country. 6-8 in. 



3S SiMPLE.x. i^/fmerecf. glabrous, with a sheaih at the base. S/>jA-e ovate. 

 Glumes obtuse, nearly white. 



Ij. Through t!:e summer. Wet places. 8-13 in. 



4 S FiLiFORMis. Stem filiform, terete. Spike cylindrical, oblong, obtuse • 

 Glumes nearly round. 



July — .Aug. Wet places. 



5 S I'alcstris. .S/<*m glabrous, sriate, lucid, with 2-3 t?henihs at the base. 

 Spike oblong-Iancoolate. Glume obtuse, with the midrib green. 



% April— May. Mar.^hes. 1-2 ft. 



6 S CiPiTATCS. Stem erect, glabrous, inflated, with a short sheath at the 

 base. SwA«' o\aic. (V/wmr* coria-eous, nrarlv round. DristlesG. 



% Through the summer. Damp soils. lO-Hin. 



7 S Tl'BERculatts. Stem erect, columnar, .«heathed at the base. Sinke 

 ovate-lanceolate. (7/uwit« obtuse, with scarious margins. Stamfns2, iieed 

 striate, with a sagitate tuburcle. Bnstles plumose. 



% July— .Aug. Wet soils. 10-12 in. 



8 S Quadrangulatcs. Stem quadrangular, glabrous, with the sides unc- 



