Obder 151.— JUNCACEjE. *;2$ 



2 L. parviflora Dcsv. St. elongated; lvs. lance-linear, glabrous ; corymb decom- 

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

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

 N. II. (Prof. Boswortli), Graylock Mt., Mass. (Chadbourne), etc. Stem 12 to 18' 

 high. Radical lvs. 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. 

 mclanocarpa 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 capsulo; seeds with a conical appendage at base. — In mead- 

 ows, U. 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 lvs. Perianth rust-colored, capsulo at length brown. 

 May. 



ft. bulbosa. 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. arcuata E. Meyer. Lvs. linear, channeled, glabrous ; heads few, 3 to 5-flou- 

 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. EL (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 f to join ; because ropes were 

 anciently made of these plants.) Perianth G-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. 



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



a Leaves none. Flowers separate, mostly hexandious, greenish Xos.l— S 



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



| 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 Stamens 3. — Heads green or pale straw-colored Nos. 6 — 6 



— Heads brown or chestnut colored Nos. 9, 10 



d Stamens G. Heads tawny or brown, — 10 to GO-iiowered Nos. 11, li 



—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 Floirers separate, not in heads, mostly secund. Stamens G. (e) 



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



C Stems naked, except ut base, scape-like Nos. 21—23 



1 J. Balticus Willd. Baltic Rush. Rhizome creeping, prostrate, rooting ; scapes 

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

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

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

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

 scaly rootstock, tho 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. efHtsus L. Soft Rusn. Bull-rush. Scops straight, not rigid; panich 

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

 pointed, as long as tho 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 



