151. JUXCACEJE. 723 



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

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

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

 X. II. (Prof. Bosworth), Graylock Mt>, Mass. (Chadbourne), etc. Stem 12 (o 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. 

 r.idunocarpa Desv.) 



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

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

 longer than the obtuse capsule ; seeds witha conical appendage at base.- In mead- 

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

 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. 



/i. BULB^SA. Bulbous ; Ivs. narrowly linear ; sep. shorter than the glabiilar. dark 

 brown copswfo?.-' Lookout Hfc, Tenn, St, 6' high, With the other, but flow- 

 ers earlier. 



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

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

 reddish-brown, about equaling the roundish -elliptical capsub j seeds not appen* 



White Mts., N. H. (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 Bills, N. II. (Prof. Bosworth). 

 iSt. 8 to 10' high, slender, simple. Lvs. 2 to ?>' 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-ceIled ; 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 hexamlrous, 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, lew or many in each head (c) 



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



d Stamens 3. Heads green or pale straw-colored .................... Nos. 6 S 



Heads brown or chestnut colored ....... . ............. Nos. 0, 10 



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



2 to 9-flowered ............ Nos. 13, 1 4 



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 secnnd. Stamens 6. (e) 



6 Steins leafy, panicle diffuse, many-flowered .......................... Nos. 19, 20 



e Stems naked, except at base, scape-like ............................. Nos. 21 3 



1 J. Balticus 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 

 scap'e, 1' long; Fls. 20 to 40, reddish brown. 



2 J. effusus L. SOFT RUSH. BULL-RUSH. Scape straight, not rigid', panick 

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

 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, 

 Etriate, 1 to u" high, bearing a loose, spreading panicle which protrudes from a 



