JtJNCACEAE (RUSH FAMILY) 



600. J. repens. 

 Inflorescence x 



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

 reddish (34 rnm. long) ; sepals lanceolate, acute; petals obtusish, | 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. americanus Buchenau. Often taller (1-4.5 dm. high) ; heads 1 or 2; 

 flowers larger (4.5-5.5 mm. long); the distinctly mucrouate-tipped capsule 

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

 and Nfd. to Ont., s. to N. S., Me., N. Y., Mich., and Minn., very 

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



42. J. repens 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-Oct. FIG. 600. 

 43. J. marginatus Rostk. Stem erect, from a bulbous and stoloniferous 

 base (27 din. 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 0.6 

 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 Michx. Coarser (0.4-1 m. 

 high); the larger infloresceiice (0.5-2 dm. high) 

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

 exceeding the sepals, persistent and usually exserted in fruit. (/". marginatus, var. 

 biflorus Engelm.) Wet sandy barrens, Mass, to Mich., and southw., mostly near 

 the coast. FIG. 602. 



2. LtlZULA DC. WOOD RUSH 



Capsule 1-celled, 3-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 Luxul<n -. 

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

 with dew.) JDNCOIDES [Dill.] Adans. JUNCODES Ktze. 



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



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

 ers 8-4.5 mm. long 1. L. *altntn*i*. 



Inflorescence a loose decompound cyme ; flowers 2 mm. long . . .2. L parcirtora. 

 a. Flowers crowded in spikes or glomerules b. 



b. Flowers white . . 8. L. nemorona. 



b. Flowers brown or straw-colored (rarely green in shade) o. 



e. Flowers in dense nodding spike-like panicle 5. L. spicata. 



e. Flowers in mostly peduncled glomerules </. 



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

 or merely lacerate. 



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



Flowers ferruginous, pale brown or yellowish. 



Bays all strongly ascending 6. L. campestri*, v. mvltiflora, 



Rays (or some of them) strongly divergent . . (6) L. c<nnpe*tr>. v. bulbosa. 

 . Leaves with involute subulate tips'; bracts at base of (lowers ciliate- 



liuibriate 4. L. confusa. 





602. J. aristulatus. 

 Fruiting flower x 3. 



601. J. marginatus. 

 Inflorescence x %. 

 Fruiting flower x 3. 



