OEDEB 151. JUNCACE.E. 725 



acute. Borders of streams and lakes, N. T. to Wis., S. to Fla. St. 16' to 3f 

 high. Heads 5 to 6'' diam., globular, 1 to 5 to 12, clustered or panicled. Sepa^a 

 with tawny awns, greenish at base. (J. nodosus, j3. megacephalus Torr.) 



12 J. nodosus L. St. erect, slender Ivs. slender or often filiform, distinctly nod 

 ous, the upper often exceeding the inflorescence ; hds. few (1 to 5 to 9), in a sim- 

 ple cluster, tawny or brown, 5 to 2,0-ftowered ; sep. ovate-lanceolate, acuminate- 

 awn ed, 3- veined, shorter than tlie rostrate capsule stam. G ; seeds oval, acute. 

 Sandy swamps and shores, Can. to Car. Sts. 12 to 18' high. Heads 3 to 5" 

 diam." Appears very different from the last. (J. Rostkovii E. Meyer.) 



13 J. articulatus L. (3. PELOCARPUS Gray. Stem erect, compressed, 1 to 2- 

 leaved ; Ivs. terete-compressed, setaceous, obscurely nodous ; panicle spreading ; 

 heads 2 to 6-flowered ; sep. oblong-lanceolate, the outer acute, the inner obtuse, 

 scarcely as long as the triangular-oblong, bluntly mucronate capsule ; stam. 6 ; 

 seeds slightly apiculate. N. Eng. to Mich, and Can., in wet places, not com- 

 mon. Sts. 9 to 18' high. Hds. chestnut colored. Anth. yellow. (J. pelacarpus 

 E. Meyer.) 



14 J. militaris Bigl. BAYONET RUSH. St. stout, terete, sheathed at base, bear- 

 ing below the middle a single terete, nodous, erect kaf which much exceeds the in- 

 florescence ; panicle erect, compound ; hds. many, brown, 4 to 9-flowered ; sep. 

 lanceolate, acute, as long as the acuminate capsule. Bogs coastward, Mass, to 

 Ga. St. 2 to 3f high. Leaf 15 to 30', overtopping the stem by six inches or 

 more. Heads small Stamens mostly G. 



15 J. marginatus Rostkow. St. compressed; Ivs. flat, smooth, gramineous; 

 panicle, corymbous, simple, proliferous ; hds. 2 to 9-flowered, tawny or chestnut- 

 colored ; bracteoles awned ; sep. obtuse, soft, about as long as the obtuse cap- 

 sule; stam. 3. In low grounds, N. E. to Ga,, "W. to 111. Sts. 1 to 3f high. 

 Radical Ivs. numerous, sheathing, cauline 1 or 2. Panicle consisting of several 

 globous, 3 to 6-flowered heads, both pedunculate and sessile, longer than tho 

 erect bracts at base. Sep. edged with dark purple, with a green keel. Jn. 

 Aug. 



J3. BIFLORUS. Stouter (2f high) ; hds. very numerous, mostly 2 or C-flowered, 

 nearly black. South, common. 



16 J. repens MX. Low, tufted with creeping stolons; Ivs. subulate-linear, 

 fascicled at the lower joints ; cyme simple ; hds. few, 3 to 8-flowered ; sep. subu- 

 late, awn-pointed, the 3 inner much longer ; caps, slender, trisulcate, much 

 shorter than the perianth. Wet places, Ga. and Fla. Sts- many, 2 to G' high. 

 Fls. 3 to 4" long. 



17 J. St^-gus L. St. filiform, erect, rigid, leafy; Ivs. setaceous, slightly chan- 

 neled, obscurely nodous ; hds. few (1 or 3), terminal, about 3-flowered ; sep- 

 oblong, acute ; stam. 6 ; caps, triangular-elliptic, acute, longer than the perianth ; 

 seeds oblong, the loose testa produced into an appendage at both ends. Perch. 

 Lake, Jefferson Co., N. Y. (Gray) and Newfoundland. Fls. unusually large, 

 straw-color. 



18 J. trifidus L. St. sheathed at base; leaf solitary, linear setaceous, near the 

 top ; sheath ciliate ; bracts foliaceous, long, grooved ; hd. solitary, sessile between 

 2 long bracts, about 3-flowered, terminal : capsule blackish, globular, beaked. 

 White Hills, N. II., and Mt. Marcy, N. Y. Sts. crowded, threadlike, G' high. 

 Radical Ivs. 1 to 2, very short, cauline leaf resembles the 2 bracts, apparently 

 forming with them a foliaceous, 3-bracted invol. Jl. 



19 J. Conradi Tuckm. St. low, erect, slender, leafy; Ivs. few, subfilUbrm, ob- 

 scurely nodous; fls. separate, scattered, central and unilateral on the slender 

 branches of the di-trichotomous panicle ; sep. lanceolate, margins scarious, rather 

 shorter than the acuminate caps. Wet places, Can. and U. S., chiefly coastward 

 Sts. G to 9' high, wiry, turfy. Stam. G. Fls. often changed to little tufts of 

 leaves. 



20 J. bufonius L. TOAD RUSH. Low, slender, tufted; sts. forking; branches 

 jloriferous their whole length ; fls. separate, greenish, remote ; sep. lance-subulate, 

 awn-pointed, the 3 outer longer ; caps, triangular oblong, obtuse, mucronulate, 

 much shorter than the perianth ; seeds oval, obtuse. X' Damp, waste places, in all 



