juncacejE. (rush pamilt.) 481 



4. 3. SCtaceus, Kostk. Scape slender (2° -3° high) ; panicle loose, rather 

 simple, turning light chestnut-color ; sepals lanceolate, sharp-pointed, especially 

 the 3 exterior, longer than the obovate mucronate-pointed pod. — Pcnn., Vir- 

 ginia, and southward, near the coast. 



'5. S. maritinins, Lam. Scape stout and rigid (2^-5° high), the apex 

 pungent ; panicle compound, erect, loose ; the flowers clustered in small heads ; 

 sepals lanceolate, the outer acute, as long as the elliptical short-pointed pod. 

 (J. acutus, Miihl., &c.) — Brackish maishes, Now Jersey (Pursh), Virginia, and 

 southward. (Eu.) 



* * * Stems leaf-bearing ; leaves terete, or flattened laterally (equitant), knotted bi) 

 cross partitions internalli/ : cyme or panicle terminal : flouxrs in heads or smalt dus- 

 ters (verg liable to a monstrosity, from the bite of insects making them appear as 

 if uiviparous) : pod more or less 1-ceIled. 



H- Stamens 3. 



6. J. SCirpoides, Lam. Stem stout (l°-3° high) and terete, as are the 

 leaves ; panicle rather simple, bearing several (5 -18) pale green densely mam/flow- 

 end spherical heads; sepals rigid, awl-sliaped and bristly-painted, especially tlio 

 outer, as long as the oblong triangular taper-pointed pod ; seeds barely pointed 

 at each end, tailless. (J. polycephalus, Michx. (excl. var. at). J. echinatus, 

 Muhl. J. nodosus, var. multiflorus, Torr.) — Wet borders of streams, &c. ; 

 ratlier common. ^Rootstock thickish, creeping. Remarkable for its bur-like 

 green heads, usually J' in diameter. 



7. J. paradoxus, B.Meyer. Stem rather stout (I°-2|° high), terete; 

 leaves terete or somewhat flattened ; panicle decompound; the numerous greenish 

 heads globular, many- (8 - 15-) _floioered ; sepals lanceolate, somewhat awl-pointed, 

 rigid, sliorter than the oblong-triangular abruptly short-pointed pod ; seeds con- 

 spicuously tailed at both ends ! (J. polycephalus, Darlingt., Torr. FL N. Y. excl. 

 var. 3, & syn. J. fratemus, Kunth. 3. sylvaticus, Pursh.) — Wet places ; com- 

 mon. — Heads less dense, fewer-flowered, and sometimes smaller, than in the 

 foregoing. Remarkable for the loose white seed-coat prolonged at both ends 

 into a tail longer than the oblong body of the seed. 



8. J. dctoilis. Stems weak and slender (l°- 2° long), Jlatteiied, as are the 

 slender loaves ; panicle decompound, loose, widely spreading ; the numerous pale green 

 heads i-8-flowered; sepals lanceolate, acute, herbaceous, shorter than the oblong 

 pod ; seeds tailless, minutely and barely pointed at each end. (J. subverticilla- 

 tus, Miihl., not of Wulf. J. pallescens, Meyer, as to N. American plant. J. 

 polycephalus, var.? depauperatus. Ton: Fl. N. Y.) — Wet swamps; common, 

 especially southward and westward. — Roots fibrous. Stems often decumbent 

 or floating and rooting : branches of the cymose panicle slender and diverging. 

 Heads 2" long. Pods pale, sometimes twice tlie length of the calyx wlien ripe. 



This, which is pretty clearly the J. acuminatas of Kunth, is perhaps the plant 



of Michaux ; but the next is the species taken for J. acuminiitus by American 

 authors. 



9. J. acuminatUS, Michx. Stem erect (10' -15' high), terete, leaves 

 slender, nearly terete ; panicle with rather slightly spreading branches, bearing Jew w 

 many 3 - 8-flowered chestnut-colored heads : sepals lanceolate or linear-lanceolate, 



41 



