494 JUNCACK.K. (iJLSII FAMILY.) 



very acuto,'as long as the globose ilark green capsule. — Low grounds, Florida to 

 North Carolina. May and June. — Stem l°-3°lugh. Panicle dense or elon- 

 gated. 



§ 2. Stems jointed, leafij : clusters or panicles terminal. 

 * Lcai-es terete or somewhat Jlattened, knotted: stamens 3. 



6. J. scirpoides, Lam. Rigid ; stem stout, erect ; leaves terete, panicle 

 erect, contracted, the few large globose green or brownish heads composed of 

 several more or less distinct smaller ones; sepals lanceolate-subulate, as long as 

 the lanceolate taper-pointtd 3-angled capsule; seed ovoid, reticulatid, witlioiit 

 appendages. (J. echinatus, Ell.) — Varies with the smaller more numerous and 

 crowded heads conspicuously lobcd by the more distinct clusters, and with 

 broader and shorter sepals and capsules. — Sandy swamps, Florida to Nortii 

 Carolina. July - Sept. — Stem 2° high, from a thick and creeping rliizoma. 

 Heads 4"- 7" in diameter. 



7. J. polycephalus, EU., Michx. in jiart. Stem tall, slender, compressed 

 near the base ; leaves long, flattened, and often somewhat sword-shaj)cd ; panicle 

 large,*widely spreading, the numerous globo.se many-flowered pale heads sessile, 

 or on long diverging peduncles ; sepals linear-subulate, shorter than the lance- 

 olate-subulate 3-anglcd capsule ; seeds oblong, striate, barely pointed. — Ponds 

 and miry margins of streams, Florida to North Carolina. July - Sept. — Stem 

 2° -4° long. Leaves weak, l°-2° long, sometimes i' wide. 



Var. ? depauperatus, Toit. Stem and leaves more slender ; heads small- 

 er and fewer-flowered ; sepals lanceolate, shorter than the oblong capsule — Wet 

 places, Georgia, and northward. — Roots fibrous. Stems often decumbent and 

 rooting. 



8. J. paradoxus, Meyer. Stem rigid, erect, terete ; leaves terete ; panicle 

 erect; heads j)alc, 8- 15-flowcred, sessile, and on short erect peduncles; sepal.s 

 lanceolate-subulate, rigid, shorter than the oblong 3-anglcd abruptly pointed 

 capsule ; seeds with a long and slender appendage at each end. — Wet places, 

 South Carolina, Curtis, and northward. July - Sept. — Stem 1° -2° higli- 



9. J. aeuminatus, Michx. Stem erect, terete, like the slender leaves ; 

 panicle mostly simple, erect ; heads (2" -3' long) 3- 8-flowered ; sepals linear- 

 lanceolate, half as long a.s the lanceolate-oblong abruptly pointed 3-angled light 

 brown capsule ; seeds with a short appendage at each end. — Sandy wet places 

 in the middle districts of Georgia, and northward July - Sept. — Stem 8'- 15' 

 high. Root fibrous. Capsule 2" long. 



10 J. EUiottii. Stem slender, nearly terete ; leaves terete, grooved near 

 the ba,sc within ; panicle erect, simple or compound ; heads (1" - 2" long) 5-8- 

 flowered ; sepals ovate-lanceolate, as long as the ovoid obscurely angled obtuse 

 deep chestnut capsule ; seeds oblong, striate, without appendages. (.1 aeumina- 

 tus, FJL, not of Mirhx.) — Bogs and ditches, Florida to North Carolina June - 

 Aug. — Root fii)rous, often bearing small tubers. Stem l°-2° high. Heads 

 commonly very numerous. Capsule 1" long, shining. 



