JTJNCDS JUNCACEjE 683 



leafy; from slendei rootstocks : leaves terete, deeply cbauaelled at base : 

 spathe longer than the, inflorescence : heads 1-3, 3-l2flowered : perianth- 

 segments brown or black,. 2-A lines long, lanceolate, acute : anthers pointed, 

 half as long as the filaments: capsule brown, Idnger than the perianth, 

 narrowly oblong, tapering to an acute summit, imperfectly 3-celled : seeds 

 with long slender tails, the body about % line long. ' Oregon to Alaska 

 and across the Continent. 



* * Stems leafy at base: leaves fiat or semiterete, not knotted: 

 panicle or head evidently terminal : the spathe Usually short; 



■*- Dwarf or low slender annuals with fibrous roots : steins leafy, 

 branched. 



J. bnfonins L. Sp. 328. Stems usually braiiching from the base, 1-12 

 inches high : leaves very narrow, usually revolute and bristle-like : flowers 

 greenish, mostly remote and secund upon the spreading branches : perianth - 

 segments lanceolate, acuminate, with scarious margins, 2-3 lines long, the 

 inner slightly shorter : stamens 6 ; anther^ about as long as the filaments : 

 capsule oblong, obtuse, shorter than the perianth : seeds ovate, obtuse, 

 very finely striate and cross-lined. A common species everywhere, grow- 

 ing in places that are wet in spring. 



J. triforpiis Engelm. 1. c. 492. Stem very short or almost none, 

 bearing several erect fil^orm scape-like pedunples 1-3 inches long : leaves 

 an inch long or less, filiform, cbanndled, flat above: flowers usually 3-7, 

 in a smallhead: perianth, brownish, its segments narrowly lanceplate, 

 acuminate, .1-1^ lines long,, a little longer than the 3 stamens and the 

 obtuse apiciilate capsule,:, style exserted, wi^h elongated stigiaas : seeds 

 ovate, obtuse, fipely ribbed and cross-lined. , In barren places that are wet. 

 in spring, western Oregon to California. 



Var. brachfstflus Engelm. 1. o. Smaller, the peduncles 1-3-flow- 

 «red : stamens half the length of the perianth ; the oblong anthers shorter 

 than'the filaments : style and stigmas ^hort, included. With the tj'pe^ 



Var. nnlflorns Engelm. 1. c. Very small, only-half to an inch high, 

 the solitary flowers mostly dimerous. OV^goii to California. 



■*- ■*- Taller perennials : stems sicnple: stamens 6. 



•"- Stems naked : flowers solitary in a diffuse *r compact panicle, 



J. tennis Willd. Sp. PI. 214. Stems slender, erect, 1-2 feet high, 

 leafy at base: leaves very narrow, flat or more or fess channelled or invo- 

 lute, shorter than the stem : spathe exceeding the inflorescence : .panicle, 

 usually loose and spreading: perianth-segments p^l^, narrowly lanceolate,: 

 acuminate, 1)^-2 lines long, spreading in fruit and equalling or exceeding 

 the ovate refuse greenish capsule : seeds white-appendaged at each end, 

 very finely ribbed and cross-lined. In dry or moist soile, throughout most 

 parts of North America. 



J. occidentalis Weigand Bull.'Torr. Bot. Club xxvii, 521. /. tenuis 

 tar. congestus Engelm. Stems stiff and erect, 1-2 feet high, pale green, 

 nearly terete ; leaves J^-^ the length of the stem, flat and flexuous : 

 spathe 2-3 inches long, exceeding the inflorescence : panicle glomerate, or 

 more commonly somewhat o^en, fuscous : perianth:segments broadly subu- 

 late, fuscous with green midrib and rather broad scarious margins : stamens 

 about half as long as the perianth, the oblong anthers much shorter than 

 the filaments: capsiule oblong-ovoid, fobtuse or retuse. % as long as the 

 perianth, fuscous, the placentae extending only about half-way to the axis : 

 seeds oblong, irregularly apiculate at each end areolate-reticulated, not 

 striate. Along ditches and in wet places, Oregon to< California. 



J. confasus Coville Proc. Biol. Soc; of Wash. x. 127. Densely tuft- 



