ORDER 150. JUNCACE^E. 351 



Perianth yellow (greenish outside). Stigma 1. Capsule 00 -seeded NARTHKCIPM. 1 



Perianth green or brownish. Stigmas 3. x Capsule 3-seeded LUZULA. 2 



x Capsule OO -seeded Juxcus. 3 



1. NARTHECIUM, Moehr. Sepals spreading, yellowish inside. Fil. 

 hairy. Caps, prismatic, 3-celled, tipped with the single style and stigma. 

 Seeds 00, bristle-tipped at each end. U Root creeping. Lvs. linear, equi- 

 tant. Scape bracted, simple, racemous. July, August 



N. ossifraguni Huds. Pine-barrens, N. J. Scape terete, 8 12', the leaves much 

 shorter. Sepals lance-linear, 2". Pedicels 35", bracteolate. Capsule yellowish, 

 4". (N. Americauum Ker.) 



2. LUZULA, DC. WOOD RUSH. Perianth persistent, with 2 bract- 

 lets at base. Stamens 6. Capsule 1 -celled, 3-seeded. it Stem jointed, 

 leafy. Lvs. grass-like, on entire sheaths. Fls. terminal, green or brownish. 



* Flowers separate, pedicellate, in umbels or paniculate cymes Nos. 1, 2 



* Flowers aggregate, or in pedunculate heads forming an umbel or cyme. Xos. 3, 4 



x in sessile heads forming a nodding black spike No. 5 



1 Li. pllosa Willd. Lvs. lance-linear, fringed with long white hairs ; umbel simple, 



12-20-flwd. ; ped. 5 10", soon deflexed ; fls. 1", brownish. Groves, Pa., and N. May. 



2 Li. parviflora Desv. Taller; Ivs. lance-linear, glabrous; umb. decompound; fls. 



nodding, small ; sep. \" ; caps, dark brown, a little longer. Mts., N. 12 18'. Jn., Jl. 



3 L. campestris DC. Field Bush. Lvs. linear, flat, with cotton-like hairs ; fls. in 



roundish heads, which are umbelled with very unequal peduncles ; sep. rust-colored, 



longer than the obtuse caps. ; seeds appendaged at base. Meadows. 3 12'. May. 



/3. ki:lfioxa. Bulbous at base, 39' ; sep. shorter than the globular caps. Apr. 



4 Li. a re 11 at ji E. Mayer. Lvs. linear, channelled, glabrous ; hds. 3-5-flwd., on filiform, 



often recurved, unequal ped. ; bracts ciliate ; seeds not appendaged. White Mts. 



5 Li. spicata DC. Lvs. linear, hairy at base, very short ; spike oblong, 812" ; eep. 



bristle-pointed, equalling the roundish, black capsule (J"). White Mta. 912'. Jl. 



3. JUNCUS, L. RUSH. Stamens 6 or 3. Capsule 3-celled, or (by the 

 dissepiments not reaching the centre) 1-celled. Seeds numerous. It 

 Mostly glabrous. Stems simple, leafless, or with terete or grassy leaves, 

 entire sheaths, and small, 2-bracteolate, green or brown fls. June Aug. 



Clusters growing apparently from the side of the simple scape . .(*) 

 Clusters terminal on the stem or scape. Leaves never knotted. . .(**) 

 Clusters terminal. Flowers in heads. Leaves internally knotted.. .(***) 



* Leaves few, radical, knotlcss, terete like the scape NOB. 1, 2 



* Leaves none. Flowers separate, not in heads. a Stamens 3 No. 8 



a Stamens 6 Nos. 4 6 



** Flowers separate, not in heads. Stamens 6. . . (c) 



** Flowers capitate, few or many in each head. b Stamens 6 Nos. 7, 8 



b Stamens 3 Nos. 9, 10 



c Stems branched. Pod much shorter than the unequal sepals No. 11 



e Stems simple. d Pod globular, not exserted. Flowers green Nos. 12, 13 



d Pod oblong or ovoid, exserted, brown Ntia. 1416 



*** Seeds tailed. Panicle rather erect, longer than its bract Nos. 1719 



*** Seeds acute, not tailed. x Stamens 6. ..(y) 



x Stamens 3, bracts shorter than panicle. . .(z) 



y Heads 2-8-flwd. (or 1-flwd. in No. 20). Bracts shorter than panicle. . .Nos, 20, 21 

 y Heads 5-70-flowered. Leaf or bract overtopping the panicle Nos. 22, 28 



