JTJNCACEAE (RUSH FAMILY) 



600. J. repens. 

 Inflorescence x %. 



about the length of the sheathing scarious awl-pomterl bract ; flowers pale and 

 reddish (3-4 mm. long) ; sepals lanceolate, acute ; petals Dbtusish, J the length 

 of the trigonous-ovoid acute or acuminate pale capsule (5-0 mm. long), as long 

 as the slender stamens ; filaments many times longer than the oblong anthers ; 

 recurved stigmas shorter than the style ; seeds oblong, with a very loose coat 

 prolonged at both ends (2-2.5 mm. long). — Eurasia. 



Var. americSnus Buchenau. Often taller (1-4.5 dm. high) ; heads 1 or 2 ; 

 flowers larger (4.5-5.5 mm. long); the distinctly mucronate-tlpped capsule 

 longer (6-9 mm. long) ; seeds 3-4 mm. long. — Peat^bogs, Lab. 

 and Nfd. to Ont., s. to X. S., Me., X. Y., Mich., and Jliun., very 

 local. July, Aug. (E. Prussia.) 



42. J. ripens Michx. Stems ascending (0.5-2 dm. high) 

 from a fibrous annual root, at length creeping or floating ; 

 leaves short, linear, those of the stem nearly opposite and 

 fascicled; heads few in a loose leafy cyme, 3-12-flowered ; 

 flowers green (0.5-1 cm. long) ; sepals and petals rigid, lance- 

 subulate, sepals as long as the' linear triangular obtuse capsule, 

 the petals much longer ; stamens as long as the sepals ; fila- 

 ments much longer than the oblong anthers ; seeds obovoid, 

 slightly pointed, very delicately ribbed and cross-lined. — Miry 

 banks and ditches, Del. to Fla. and La. June-Oet. F ig. fji lO. 

 'j/43. J. margin^ tus Eostk. Stem erect, from a bulbous and stoloniferous 

 base (2-7 dm. high) ; leaves linear ; heads 3-12-flowered, in simple or compound 

 cymes ; flowers purplish and green (3.5 mm. long) ; sepals and 

 petals oblong, the sepals acute and slightly awned, petals longer, 

 mostly obtuse, as long as the subglobose scarcely mucronate cap- 

 sule ; stamens shorter than the sepals, early shriveling ; anthers 

 shorter than the filaments; style very short; seeds (about 0.5 

 mm. long) slender, pointed at both ends and strongly ribbed. — 

 Moist sandy places. Me. to Ont., Neb., and 

 southw. July-Sept. Fig. 601. 



Var. setbsus Coville. Similar to the species, 

 but with lance-attenuate aristate petals. - 

 Kan. to La. and Tex. 



44. J. aristulatus ilichx. Coarser (0.4-1 m. 

 high) ; thelarger inflorescence (0.5-2 dm. high) 

 with abundant 2-5-flowered brown heads ; stamens equaling or 

 exceeding the sepals, persistent and usually exserted in fruit. {J. mnrginatiis, var. 

 hiflonis Engelm.) — Wet sandy barrens, Mass. to Mich., andsouthw>, mostly near 

 the coast. Fig. 602. 



8. LtZULA DC. Wood Rush 



Capsule 1-celled, .S-seeded, 1 seed to each parietal placenta. — Perennials, 

 often hairy, usually in dry ground, with flat and soft usually hairy leaves, and 

 spiked, crowded, or umbeled flowers. (From Gramen Luzulae, or Luxulae. 

 diminutive of lux, light, — • a name given to one of the species from its shining 

 with dew.) Juncoides [Dill.] Adans. Jdncodes Ktze. 



a. Flowers solitary at the tips of the ultimate branches of the inflorescence. 



Inflorescence an umbel, the filiform peduncles l(rarely 2)-flowered ; flow- 

 ers S-4.5 mm. lonff 1. Z. naltuen'^h. 



Inflorescence a loose decompound cyme ; flowers 2 mm. lon^ . . . 2. i parrijtora. 

 «.. Flowers crowded in spikes or glomerules b. 



ft. Flowers white . 3, X. nejnorom. 



6. Flowers brown or straw-colored (rarely green in shade) c. 



c. Flowers in dense nodding spike-like panicle 6. Z. apicata. 



c. Flowers in mostly pednncled glomeru-es d. 

 d. Leaves flat, with blunt callous tips ; bracts at base of the flowers entire 

 or merely lacerate. 



Flowers castaneous (6) L. campeatris, v.friffida. 



Flowers ferruginous, pale brown or yellowish. 



Rays all strongly ascending 6. Z. campe)>tri-i. y. multiiiortt, 



Eays (or some of them) strongly divergent . . (6) Z. camp««tri«, v. ftu/ftoMi. 

 i. Leaves with involute subulate tips'; bracts at base of flowers ciliate- 



flmbriate .,. •*•« 4.£ ooufiaa-. 



602. J. aristulatus. 

 Fruiting flower x 3, 



601. J.marginatos. 

 Inflorescence x %. 

 Fruiting flower x 3. 



