JUNCACEAE (RUSH FAMILY) 



273 



of the ovary ; seeds rather large (ahnnt 1 mm. long), nearly 

 obtuse, delicately ribbed and cross-lmod. — Sandy (mostly 

 brackish) shores, Nfd. to N. Y. and Pa.; the Great Lakes, and 

 westw. Fig. 579. 



15. J. filif6rmis L. Scape very slender (L5-C dm. high), 

 pliant; cyme few-flowered, almost simple; flowens 8 mm. 

 long ; sepals lanceolate, petals a little shorter and less acute, 

 mostly longer than the obtuse greenish capsule ; anthers 

 shorter than the filaments ; style very short ; 

 seed (0.5 mm. long) short-pointed at both 

 ends, indistinctly reticulated. — Wet shores 

 and bogs, Nfd. to Sask., Pa., Mich., Rocky 

 Mts.,etc. June-Aug. (Eurasia, Patagonia.) 

 Fig. 580. 



16. J. effusus L. (CoMMOx or Soft 

 Rush.) Scape soft and pliant (3-12 dm. 

 high) ; inner sheaths awned ; cyme diffusely 



much branched, many-flowered ; prophyllum below the indi- 

 vidual flowers iDroad-ovate ; flowers small (2-2.5 mm. long), 

 greenish ; sepals lanceolate, very acute, as long as the narrow 

 triangular-obovoid retuse and pointless greenish-brown capsule ; 

 anthers as long as the filaments ; style very short ; seeds small 

 (0.5 mm. long), with short pale points. — Marshy ground, very 

 common. (Cosmop.) Var. compactus Lejeune & Courtois 

 dense, glomerulate. — Less common, except in N. S., where abundant 



17. 

 high) 



5T9. J. bait., V. lit. 

 Inflorescence X %. 

 Fruiting flower X 3. 



580. J. flliformis. 

 Inflorescence x %. 

 Seed X 25. 



Inflorescence 



581. J, Smithii. 

 Inflorescence X2/3. 

 Seed X 20. 



J. conglomeratus L. Similar to the last ; scapes more rigid (.3-7 dm, 

 distinctly sulcate or even costate below the inflorescence ; glomerule 1-2 

 cm. in diameter ; prophyllum lanceolate ; flowers about 3 mm. 

 long, brown or greenish ; sepals somewhat exceeding the 

 short-mucronate capsule ; anthers shorter than the fila- 

 ments. {J. Leersii Marsson). — Ditches, etc., Nfd. and N. S. 

 (Eurasia.) 



18. J. Smithii Engelm. Scape rather slender (6-9 dm. 

 high) ; cyme few-flowered, nearly simple ; sepals lanceolate, 

 acute ; petals a little shorter, obtusish, shorter than the 

 broadly ovoid rather triangular acute deep chestnut-brown 

 capsule ; anthers as long as the filaments ; style short ; seeds 

 large (nearly 1 mm. long), obtuse, short-appendaged at 

 both ends, many-ribbed and reticulated. {J. gymnocarpus 

 Coville). — Sphagnous swamps and wet woods, very local, 

 Schuylkill Co., Pa. ; Walton Co., Fla. Fig. 581. 



§ 2. Flowers eprophtjUate, i.e. with only the bractlet at base of the very short 



pedicel. 



* Leaves terete^ scape-like, not septate. 



19. J. Roemerianus Scheele. Scape stout and rigid (0.5-1.5 m. high), it.s 

 apex as well as the leaves pungent ; cyme compound, open and spreading, 

 brown; .3-6 greenish or light brown flowers (3-3.5 mm. long) in a cluster; 

 sepals lanceolate, sharp-pointed, longer than the obtusish petals ; anthers much 

 longer than tha broad filaments ; styles shorter than the ovary ; seeds (0.7 mm. 

 long) very delicately ribbed. — Brackish marshes, N. J. to Fla. and Tex. 



20. J. maritimus Lam. Resembling the last, but with a rigid contracted green 

 cyme, an ovary attenuated into a style of nearly its own length, a greenish acute, 

 capsule which usually exceeds the acute sepals, and seeds with distinct tails and 

 stronger ribs. — Coney Island, N. Y. (Widely distr.) 



* * Leaves nodulose, i.e. loith septa at regular intervals. 



21. J. dsper Engelm. Stems tufted, erect (0.4-1 m. high), terete, stout, 

 rigid, and with the rigid leaves rough; cyme with rigid slightly spreading 



gray's MANUAL 18 



