OliDRK 161.-^TTN0ACBjB. VSS 



2 Ii. parvifldra Desv. St. elongated ; to*, lance-linear, glabrous ; corymb decom- 

 pound; ped. elongated, the branches with 3 io i pediceUate fls. ; sep. ovate, aco- 

 miuate, longer than the oval-triangular, obtuse-muoronate capsule. — White Hills, 

 N. H. (Prof. Bosworth), Graylock Mt, Mass. (Chadirourne), etc. Stem 12 to 18' 

 high. Radical Ivs. 8 to 10' by 3 to 6", those of the stem much shorter, all very 

 smooth. Panicle large, nodding, many-flowered. Capsule black. Jn. (ll 

 melanocarpa Desv.) 



3 L campestris "Willd. Field Rusn. Lvs. hairy ; spikes globular or ovate, 

 some on long peduncles, some nearly sessile ; sep. lanoeolate, aouruinate-awned, 

 longer than the obtuse capsule ; seedi wUha conical appendage at base. — In mead- 

 ows, TJ. S. and Can. St. simple, straight, 3 to 12' high. Lvs. grass-like, 2 to 6' 

 long, with tufts of cotton-lika hairs. Heads in a sort of umbel, with an involucre 

 of 2 or 3 short, unequal lvs. Perianth rust-colored, capsule at length brown. 

 May. 



fi. BULndSA. Bulbous ; lvs. narrowly linear ; sep. shorter than, the globular, dark 

 brown capsules. — Lookout Mt., Tenn. St. 6' high. "With the other, but flow- 

 ers earlier. 



4 L. arcukta E. Meyer. Lvs. linear, channeled, glabrous ; heads few, 3 to ^-flom- 

 ered, on unequal, filiform, often recurved pedicels ; bracts ciliate ; sepals acute, 

 reddish-brown, about equaling the roundish-elliptical capsule ; seeds not appen- 

 daged. — ^White Mts., N. H. (not common) and Arc. Am. 



5 T. spicdta DC. Lvs. linear, hairy at the base ; spike cemuous, composed of 

 several sessile globular heads ; sep. acuminate-awned, about equal in length to 

 the subglobous short-pointed, black capsule. White Hills, N. H. (Prof Bosworth). 

 St. 8 to 10' high, slender, simple. Lvs. 2 to 3' long, a line wide, smooth except 

 at the base. Spike an inch long, appearing greyish black when mature. Seeds 

 oval, with a small, oblique appendage. Jl. 



3. JUN'CUS, L. EusH. (Lat. ^'wreyo, to join; because ropes -were 

 anciently made of these plants.) Perianth C-sepaled, glume-like, per- 

 sistent ; stamens 6, rarely 3 ; capsule mostly 3-celled ; seeds numerous, 

 attached to the inner edge of the dissepiments. — St. simple, leafy or 

 leafless, with terete, flat or channeled lvs., entire sheaths and small, 

 bibracteate, greenish fls. 



% Cyme or panicle lateral, bursting from the side of the scape above the middle, (a"* 



a Leaves none. Flowers Bep.arate, mostly hexandi-ous, greenish IT 03.1—3 



a Leaves feiv, radical, jointless. Flowers capitate, 6-androu6, brownish Nos. 4, 5 



5 Cyme or panicle terminal on tlie stem or scape. Leaves present, (b) 

 b Flowers capitate, few or many in each head, (c) 



o Loaves jointed (nodous) with internal, transverse partitions, (d) 



d Stamens 3. — Heads {rveen or pale straw-colored Nos. 6 — 8 



— Heads brown or chestnut colored Nos. 9, 10 



d Stamens 6. Heads tawny or brown, — 10 to 60-flowered Nos. 11, 12 



—2 to 9-flowered Nos. 13, 14 



C Leaves not jointed. — Heads many, brown. Sepals obtuse. Stamens 8 No. 15 



— Hcadsfew or many, green. Sepals awned No. l(i 



— Heads mostly but one. Sepals acute. Stamens G. Nos. 17, IS 

 b Flowers separate, not in beads, mostly secund. Stamens 6. (e) ' 



e Stems leafy, panicle diffuse, many-flowered Nos. 19, 20 



e Stems naked, except at base, scape-like Nos. 21— 2U 



1 J. Bdlticus Willd. Baltic RnsH. Rhizomecreeping, prostrate, rooting; sca2)ft« 

 numerous, sheathed at base, opaque terete, rigid, slender, pungently acute ; pani- 

 cle near the summit, small ; fis. separate, brovm ; sep. subequal, ovate-lanceolato, 

 very acute, equaling the elliptical, mucronate capsule. — Sandy shores. Me. to Wi.". 

 and Can. Scape leafless, 1 to 3f high, hard, tough, closely arranged along the 

 scaly rootstook, the sheaths 3" to 3' long. Panicle 2 to 5' below the apex of the 

 scape, 1' long. Fls. 20 to 40, reddish brown. 



2 J. effClsTig L. Soft Rush. Bull-rush. Scape straight, not rigid; panicle 

 lateral, hose, decompound, sometimes dense ; fls. separate ; sep. green, taper- 

 pointed, as long as the obovate, obtuse capsules. — Tery common in ditches and 

 moist lands, forming tufts. Can. and U. S. Scape solid, with a spongy pith, soft, 

 striate, 2 to 3f high, bearing a loose, spreading panicle which protrudes from a 



