JUNCACEAE (RUSH FAMILY) 



273 



579. J. bait., v. lit. 

 Inflorescence x %. 

 Fruiting flower x 3. 



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

 obtuse, delicately ribbed and cross-lined. Sandy (mostly 

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

 westw. FIG. 579. 



15. J. filif6rmis L. Scape very slender (1.5-6 dm. high), 

 pliant ; cyme few-flowered, almost simple ; flowers 3 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. (COMMON 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 broad-ovate ; flowers small (2-2.5 mm. long), 

 greenish ; sepals lanceolate, very acute, as long as the narrow 550. j. 

 triangular-obovoid retuse and pointless greenish-brown capsule ; inflorescence x %. 

 anthers as long as the filaments ; style very short ; seeds small Seed x 25. 

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

 common. (Cosmop.) Var. COMPACTDS Lejeune & Courtois. Inflorescence 

 dense, glornerulate. Less common, except in N. S., where abundant. 



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

 high), 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-rnucronate 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 eprophyllate, 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), its 

 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 the 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. with septa at regular intervals. 



21. J. asper 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 



581. J. Smithii. 

 Inflorescence x %. 

 Seed x20. 



