144 LILIACE.E. 



n- -n- Perianth-segments more or less united, with the stamens on the throat, 1 -nerved : pedicels 



jointed, except in n. 7. 



4. Brodiaea. Perianth funnel-form, not contracted at the throat nor saccate at base, purple to 



white or yellow. Stamens 6, in 1 or 2 rows, with winged or naked filaments, or 3 and 

 alternate with as many staminodia. 



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



at the throat ; lobes spreading. Stamens 3, with alternate ligulate staminodia ; fila- 

 ments winged. 



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 6, in 1 row, the filaments united into an erect toothed tubular crown. 



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



a short rootstock : capsule and seeds as in *. 



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



ments. Stamens 6, in one row. Leaves linear, elongated, flat. 



* * # 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 eacli cell : bulb tunicated. 



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



several, ovate, angled. 



10. Hesperocallis. Stem leafy. Flowers white, funnelform, 6-cleft to below the middle. 



Seeds numerous, flat and horizontal. 



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

 ++ Stems sparingly leafy, from tunicated bulbs : perianth-segments distinct, 3-nerved. 



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



apparently 1 -nerved, exceeding the pedicel. Style short. 



12. Chlorogalum. Flowers white or pinkish, scattered ; perianth at length twisted over the 



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



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



segments. 



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



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

 Seeds dark brown. 



* * * * Inflorescence racemose or paniculate, the pedicels jointed : stem leafy, from a fibrous- 



rooted caudex or rootstock : fruit a berry, or dry and regularly or irregularly dehiscent. 

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

 colored. 



H- Fruit a berry : stem slender, from a creeping rootstock : leaves cordate to lanceolate : flowers 

 in a small terminal raceme or panicle. 



14. Smilacina. Stem leafy. Flowers trimerous, paniculate or racemose, solitary. Filaments 



subulate. Leaves sessile. 



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



simple raceme. Filaments filiform. Leaves mostly petiolate. 



n- -n- Fruit thin -membranous and bursting irregularly, deeply 3-lobed : stem stout, leafy, from a 

 thick woody caudex or rootstock : leaves numerous, linear-elongated, rigid, serrulate. 



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



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



HT- +- Flowei-s large, with distinct several-nerved segments, racemose-paniculate on a stout leafy- 

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



17. Yucca. Fruit baccate or capsular. Leaves linear-lanceolate, thick, rigid and spine- 



tipped. 



II. Floral bracts none or foliamnis. Flowers with distinct mostly net-veined and deciduous 

 segments, hypogynous stamens with more or less extrorse anthers, and usually deciduous styles 

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

 brownish. (Calochorius and Trillium exceptional.) 



* Flowers showy, terminal or axillary or subumbellate, upon a more or less leafy stem from a 

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



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



