JUNCACE^. 403 LUZULA. 



6. J. acumina'tus. Mx. 



Stem erect; leaves terete ; panicle terminal, compound ; heads 3 — C-flower- 

 ed, both pedunculate and sessile ; leaflets of the peiiatUh linear-lanceolate, 

 mucronate, shorter than the acute capsule. Very common in boggy meadows. 

 Stem 12 — IS inches high, tough and wiry. Leaves few and short, with knot- 

 like joints. Panicle erect. Aug. 



* * * Stems leafy. Leaves nearly flat, channeled above. 



7. J. BULBO'SUS. 



Stem sifiiple; leaves linear-setaceous ; pnnicle terminal, compound, subcy- 

 mose, shorter than the involucre ; perianth segments obtuse ; capsule longer 

 than the calyx, subglobose. Grows in salt marshes, forming tufts. It has a 

 blackish appearance at a distance from its dark green loliage and dark-colored 

 spikes. Stem 8 — 12 inches high, wiry. Leaves short. Panicle small, 

 terminal, dichotomous, subtended by an involucre of 2, setaceous, unequal 

 leaves. Aug. Black Grass. 



8. J. bufo'nius. 



Sif 771 dichotomous above; leai^es grooved, subsetaceous ; floicers ohlong, 

 subsolitaiy, sessile, unilateral. A small, caespitose species, common in wet 

 grounds, ditches, &c. Stems numerous, 3 — 8 inches high, with alarge,few- 

 tlowered panicle at top. Leaves few, 2 — 3 inches long. Peiianth segments 

 twice as long as the ovary. July, Aug. Toad Rush. 



9. J. milita'kis. Bic. 



LnafsoVilvLTy, jointed, longer than the stem ; panicle terminal, proliferous ; 

 heads about 5-liowered ; stem thick, round, smooth, 2, 3 or 4 feet high. Leaf 

 jointed, cylindrical, loosely cellular within, 2—3 feet long, inserted below the 

 middle of the steni, but rising above its summit. Panicle erect, teiminal, 

 composed of several pedunculate heads each with 4— G sessile flowers. Shores 

 of ponds. Ms. N. H. July. Buijontt Rush. 



10. J. tri'fidus. 



Stem sheathed at base ; ^er?/ solitary, linear-setaceous near the top ; sheaths 

 ciliate; tmc/s foliaceous, long, grooved. Heads about 3-flovvered, terminal. 

 While Hills. N. H. Bw. Stems crowded, thread-like, i foot high. Radi- 

 cal leaves 1 — 2, very short. The cauline leaf resembles the 2 bracts, apparently 

 forming with thorn a foliaceous, 3-bracted involucre. Jl. Three-leaved Rush. 



IL J. EMARGINA'TUS. Rostli. 



Stem compressed; lear^es flat, smooth, gramineous; panicle corymbose, 

 simple, proliferous ; floicers in capitate clusters, triandrous ; perianth about as 

 long as the obtuse capsule, the sepals and bracts somewhat awned. In low 

 grounds. Ms. N. York. Stems 1—3 ieet high. P..adical leaves numerous, 

 sheatliing ; cauline 1 or 2. Panicle consisting of several globose, 3— C-flow- 

 ered heads both pedunculate and sessile, longer than the erect bract at base. 

 Sepals edged with dark purple, unequal. Aug. 



2. LU'ZULA. 

 Perianth persistent, bibracteate at base; stamens 6 ; cap- 

 sule 1-celled, 3-seedod ; seeds fixed to the bottom. 



Italian luccioln, a glow-worm ; from the dew glistening upon its flowers. 

 Stem nodose, leafy. Lvs. flat, gramineous, generally pilose. Fls. terminal. 



1, L. CAMPE'stRIS. W. Juncus campestris. L. 



Leaves hairy ; spikes terminal, with or without peduncles ; leaflets of the 



perianth lanceolate, acuminate, awned, Ioniser than the obtuse capsule. In 



meadows. Stem simple, straight, 3 — 12 inches high, according to the mois- 



