JUNCACE.E. (HUSH FAMILY.) 521 



2. Steins jointed, leafi/ : dusters or panicles, terminal. 

 * Leaves terete or somewhat flattened ', knotted : stamens 3. 



7. J. SCirpoides, Lain. 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-pointed 3-angled capsule ; seed ovoid, reticulated, with- 

 out appendages. (J. echinatus, Ell.) Varies with the smaller more numer- 

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

 with broader and shorter sepals and capsules. Sandy swamps, Florida to 

 North Carolina. July -Sept. Stem 2 high, from a thick creeeping rhi- 

 zoma. Heads 4" - 1" in diameter. 



8. J. polycephalus, Ell., Michx. in part. Stem tall, virgate, com- 

 pressed near the base ; leaves long, flattened, and often somewhat sword- 

 shaped ; panicle large, widely spreading, the numerous globose many-flowered 

 pale heads sessile, or on long diverging peduncles ; sepals linear-subulate, 

 shorter than the lanceolate-subulate 3-angled capsule ; seeds oblong, striate, 

 barely pointed. Ponds and miry margins of streams, Florida to North Caro- 

 lina. July-Sept. Stem 2-4 long. Leaves weak, l-2 long, sometimes 

 \' wide. 



0. J. brachycarpus, Engelm. Stem erect (l-2 high), mostly 2- 

 leaved, heads 2 - 10, globular, closely many-flowered, pale green ; sepals linear- 

 subulate, unequal, the outer ones longer; capsule ovoid, acute, 1-celled, 

 shorter than the sepals; style very short. Florida to South Carolina, and 

 westward. 



10. J. diffusissimus, Buckley. Stem leafy (6' -3 long), weak ; leaves 

 compressed, knotted ; panicle decompound, widely spreading, the clusters 

 5 - 7-flowered ; sepals equal, lanceolate, acute ; capsule (4" long) oblong-linear, 

 barely acute, twice as long as the sepals; seeds ovoid obtuse. New Orleans, 

 Tennessee, and westward. 



11. J. Elliottii, Chapm. Stem slender, nearly terete; leaves terete, 

 grooved near the base within ; panicle erect, simple or compound ; heads (!" 

 2" long) 5 - 8-flowered ; sepals ovate-lanceolate, as long as the ovoid obscurely 

 angled obtuse dark brown capsule; seeds reddish brown, oblong, striate, with- 

 out appendages. (J. acuminatus, Ell., not of Mirh.r.) Bogs and ditches, 

 Florida to North Carolina. June -August. Root fibrous, often bearing 

 small tubers. Stem l-2high. Heads commonly very numerous. Cap- 

 sule 1" long, shining. 



12. J. acuminatus, Michx. Stems clustered, 3' - 2 high; leaves fili- 

 form, terete; panicle simple or compound; clusters few- many-flowered ; 

 sepals subulate-lanceolate ; capsule triangular, acute, equalling or longer than 

 the sepals ; seeds not appendaged. Low or marshy ground ; common. 



Var. debilis, Engelm. Stems weak, erect or declining, 1 or less long; 

 panicles mostly simple ; heads 2 - 5-flowered ; sepals shorter than the capsule. 

 Wet places, chiefly in the upper districts. 



13. J. Canadensis, Gay. Stems clustered; leaves terete; heads few or 

 numerous, in an open or dense panicle ; sepals linear-lanceolate, acute, the ex- 



