144 liliacejE. 



+<■ +t Perianth-segments more or less unitetl, witli the stumeiis on tlie throat, 1 -nerved : peJieels 

 jointed, exeept in n. 7. 



4. Brodiaea. Perianth funnel-form, not contracted at tlie tliroat nor saccate at hase, purple to 



wliile or yellow. Stamens tJ, in 1 or 2 rows, with winged or naked fdumenls, or 3 and 

 alternate with as many staminodia. 



5. Stropholirion. Perianth pinkish, with short broadly turbinate 6-saccate tube, contracted 



at the tiiroat; lobes spreading. JStaniens 3, with alternate ligulate staminodia; lila- 

 ments \\inged. 



6. Brevoortia. Perianth deep scarlet with short yellowish lobes, the broad tube 6-saccate at 



base. Stamens 3, with alternate broad truncate staminodia. 



7. Androstephium. Perianth pale lilac, the cylindric-turbinate tube about equalling the 



lobes. Stamens G, in 1 row, the lilaments united into an erect toothed tubular crown. 

 » • Flowers on subterranean pedicels, in a sessile umbel, with long linear scarious bracts, upon 

 a short rootstoek : capsule and seeds as in ». 



8. Leucocrinum. Perianth white, .salverform, with very narrow tube and several-nerved seg- 



ments. Stamens ti, in one row. Leaves linear, elongated. Hat. 



♦ ♦ * Inflorescence racemose or paniculate : root a bulb or corm : fruit a loculicidal capsule. 

 +- Flowers rather large, on jointed pedicels, in a simple open raceme : segments several-nerved : 



capsule obovate or oblong : seeds black, several in each cell : bulb tunicated. 



9. Camassia. Scape naked. Flowers blue (rarely white) ; segments distinct, spreading. Seeds 



several, ovate, angled. 



10. Hesperocallis. Sti-m leafy. Flowei-s white, funnelform, 6-cleft to below the middle. 



Seeds numerous. Hat and horizontal. 

 -J- -t- Flowers smaller, racemose-paniculate: capsule triangular-obovate ; cells 1 - 2-seeded. 

 ++ Stems sparingly leafy, from tunicated bulbs : i)erianth-segnu-nts distinct, 3-nerved. 



11. Hastingsia. Flowers white or greenish, numerous ; perianth lax, scarious, the segments 



a])parently 1-nerved, e.xceeding the jiedicel. Style short. 



12. Chlorogalum. Flowers white or i>inkibh, scattered ; jx-rianth at length twisted over the 



ovary, the segments distinctly 3-nerved. Style long. 

 ++ ++ Stem leafy at base, from a coated corni : perianth salverform, deciduous, with 5-nerved 



segments. 



13. Odontostomum. Flowers yellowish, .scattered. Stamens very .short, alternating with 



small linear coronal-lobes ; anthers subglobose, dehi.scent at the apex. Style deciduous. 

 Seeds dark brown. 



♦ ♦ « » Inflorescence racemose or paniculate, the pedicels jointed : stem leafy, from a fibrous- 



rooted caudex or rootstoek : fruit a berry, or diy and regularly or irregularly dehiscent, 

 -f- Flowers small ; segments distinct, 1-nerved : seeds 1 or 2 in each cell, snbglobosc, light- 

 colored. 

 ++ Fruit a berry : stem slender, from a creejjing rootstoek : leaves cordate to lanceolate : flowers 

 in a smalt terminal raceme or panicle. 



14. Smilacina. Stem leafy. Flowers trimcrous, paniculate or i-acemose, solitary. Filaments 



subulate. Leaves sessile. 



15. Maianthemum. Stem low, 2-3-leaved. Flowers dimerous, solitary or fa.scieled, in a 



sinijile raceme. Filaments fdiform. Leaves mostly petiolate. 

 ++ ++ Fruit thin-membranous and bursting irreg\ilarly, deeply 3-lobed: stem stout, leafy, from a 

 thick woody eaudex or rootstoek : leaves numerous, linear-elongated, rigid, serrulate. 



16. Nolina. Flowers polygamo-dinecious, in a loosely racemose simple or compound panicle. 



Naked eaudex dilated at base and bearing a dense crown of leaves. 

 +- +■ Flowers large, with di.stinct several-nerved segments, racemose-paniculate on a stout leafy- 

 bracteate stem from a stout caudex or rootstoek : seeds many, horizontally flattened, black. 



17. Yucca. Fruit baccate or capsular. Leaves linear-lanceolate, thick, rigid and si>ine- 



tii)ped. 



n. Floral bracts none or foliaceous. Flowers with distinct mostly net-veined and dcciduoits 

 segments, hypogynous stamens with more or less extrorse antiier.s, and usually deciduous styles 

 united at least at base. Leaves mostly with anastomosing veinlets. Pedicels not jointed. Seeds 

 brownish. {Caluchorlus and TriUiuiu exeejitional.) 



♦ Flowers showy, terminal or axillary or subumbcllate, upon a more or less leafy stem from a 

 bulb or corm ; segments bearing a nectary or gland : capsule many-seeded, mostly loculicidal. 



+- Perianth-segments similar, naked : style long. 



