ORDER 151. JUNG ACE M. 723 



2 L. parviflora Desv. St. elongated ; Ivs. lance-linear, glabrous ; corymb decom- 

 pound; ped. elongated, the branches with 3 to 5 pedicellate Jis. ; sep. ovate, acu- 

 minate, longer than the oval-triangular, obtuse-mucronate capsule. White Hills, 

 K H. (Prof! Bosworth), Graylock Mt., Mass. (Chadbourne), etc. Stem 12 to 18' 

 high. Radical Ivs. 8 to 10' by 3 to 5", those of the stem much shorter, all very 

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

 melanocarpa Desv.) 



3 L. campestris Willd. FIELD RUSH. Lvs. hairy; spikes globular or ovate 

 some on long peduncles, some nearly sessile ; sep. lanceolate, acurninate-awned, 

 longer than the obtuse capsule ; seeds wit/ia conical appendage at base. In mead- 

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

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

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

 May. 



/?. BULEoSA. Bulbous ; Ivs. narrowly linear ; sep. shorter than the globular, dark 

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

 ers earlier. 



4 L. arcuata B. Meyer. Lvs. linear, channeled, glabrous ; heads few, 3 to ^-flow- 

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

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

 daged. White Mts., N. II. (not common) and Arc. Am. 



5 T. spicata DC. Lvs. linear, hairy at the base ; spike cernuous, 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. RUSH. (Lat. jungo, to join; because ropes were 

 anciently made of these plants.) Perianth 6-sepalcd, 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 Ivs., 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 separate, mostly hexandrous, greenish Nos.l 3 



a Leaves few, radical, jointless. Flowers capitate, 6-androus, brownish Nos. 4, 5 



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

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



C Leaves jointed (nodous) with internal, transverse partitions, (d) 



d Staincns 3. Heads green 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-flo\vered Nos. 11, 12 



2 to 9-flowered Nos. 13, 14 



C Leaves not jointed. Heads many, brown. Sepals obtuse. Stamens 3 No. 15 



Heads few or many, green. Sepals awned No. 16 



Heads mostly but one. Sepals acute. Stamens 6. Nos. 17, 18 

 b Flowers separate, not in heads, 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 23 



1 J. Editions Willd. BALTIC RUSH. Rhizome creeping, prostrate, rooting ; scapes 

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

 cle near the summit, small ; fls. separate, brown ; sep. subequal, ovate-lanceolate, 

 very acute, equaling the elliptical, mucronate capsule. Sandy shores, Me. to Wis. 

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

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

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



2 J. effCisus L. SOFT RUSH. BULL-RUSH. Scape straight, not rigid; panicle 

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

 pointed, as long as the obovate, obtuse capsules. Very 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 



