272 



JUNCACEAE (RUSH FAMILY) 



574. J. dichotomus. 

 Inflorescence x %. 



575. J. setaceus. 

 Inflorescence x % 

 Seed x 25. 



beaked light mahogany-colored obscurely 1-celled cap- 

 sule ; anthers nearly as long as the filaments. Low 

 sandy grounds, L. I. to Fla. (Trop. Am.) FIG. 574. 



Var. platyphyllus Wiegand. Leaves 

 flat or merely involute as in J. tennis; 

 auricles less cartilaginous, often nearly 

 scarious ; cyme loose. Along the 

 coast, Mass, to Tex. 



10. J. setaceus Rostk. Scape slen- 

 der (0.3-1 m. high) ; cyme loose, rather 

 few-flowered ; flowers greenish (3-4 

 uim. long) ; sepals and petals lanceo- 

 late, sharp-pointed, especially the 3 

 shining sepals; capsule beak-pointed, 

 greenish or light brown ; anthers as 

 long as the filaments ; style conspicu- 

 ous ; seeds (0.6-0.8 mm. long) irregu- 

 larly obconic, long-stipitate, ribbed 

 and cross-lined. Low usually brack- 

 ish ground, Del. and Mo. to Fla. and La. June-Sept. FIG. 575. 



11. J. Vaseyi Engelm. Stems rigid (2.5-8 dm. high), densely tufted ; leaves 

 nearly terete, very slightly channeled on the inner side ; cyme 1-4 cm. long, 

 often longer than the involucral leaf ; flowers few, often one- 

 sided; capsule oblong, greenish; sepals lanceolate, acute, ap- 

 pressed ; anthers as long as the filaments ; style very short ; 

 seeds slender (1 mm. or more long), the tails half as long as 

 the dark body. Damp thickets, shores, etc., 

 n. N. B. to Sask., s. to centr. Me., n. N. Y., 

 Mich., 111., la., and Col. July-Aug. FIG. 

 576. 



12. J. orone'nsis Fernald. Similar; of 

 paler straw-color throughout ; the inflores- 

 cence elongate, 2.5-9 dm. long, subdichoto- 

 mous, the flowers secund arid distinct along 

 the secund suberect branches ; capsule oblong- 

 trigonous, truncate-emarginate, the sides flat 

 or a little concave toward the tip, much 

 shorter than the sepals; seeds 1 mm. long, 

 the tails as long as the 



body. Thickets, Me., local. 

 FIG. 577. 



13. J. Grednei Oakes & 

 Tuckerm. Stems rigid (2-8 

 dm. high) ; leaves nearly 



terete, very deeply channeled (almost involute) on the inner 

 side ; cyme 1-6 cm. long, usually much shorter than the prin- 

 cipal erect involucral leaf, generally dense, the numerous 

 flowers often one-sided (4-5 mm. long) ; sepals lanceolate, 

 acute, light brown, appressed ; anthers as long as the filaments ; 

 style very short; seeds ovoid (0.5 mm. long), ribbed and deli- 

 cately cross-lined. Sandy or barren soil, Me. to Vt. and N. J. ; 

 locally about the Great Lakes. June-Sept. FIG. 578. 



* * Inflorescence appearing lateral ; the involucral leaf erect, 

 similar to and continuing the naked scape ; leaves wanting. 



14. J. balticus Willd., var. littoralis Engelm. Scapes rigid 

 (0.3-1 in. high) ; cymes loose or dense (1-9 cm. long) ; flowers 

 chestnut-brown with green ; sepals ovate -lanceolate, sharp-pointed, petals 

 obtusish ; capsule ellipsoidal, rather triangular, obtuse and mucronate, deep 

 brown ; anthers much longer than the broad filaments ; style about the length 



576. J. Vaseyi. 

 Inflorescence x %. 

 Seed x 40. 



577. J. oronensis. 

 Inflorescence x %. 

 Fruiting flower x 3. 



578. J. Greenei. 



