346 LILIACE^E. (LILY FAMILY.) 



1. Allium. Flowers deep rose-color to white. Base of the style enclosed between the 



lobes of the capsule and jointed upon the short axis. Filaments usually dilated at 

 base. Leaves one to several. Taste and odor strongly alliaceous. 



2. Nothoscordum. Flowers greenish or yellowish white. Capsule somewhat lobed, 



with the style obscurely jointed on the summit. Filaments filiform. Leaves several. 

 Bulb not alliaceous. 



- t- Bracts several, not spathaceous, distinct : capsule not lobed : perianth funnel-form : 

 scape from a membranous- or fibrous-coated corm. 



3. Brodlaea* Flowers blue. Stamens 6, in two rows, with naked filaments. Capsule 



ovate to oblong. 



4. Androstephium. Flowers pale lilac. Stamens 6, in one row ; the filaments united 



to form an erect tubular crown, with bifid lobes alternate with the anthers. Capsule 

 subglobose-triquetrous , 



IK t- -- Acaulescent : bracts elongated linear: capsule triangular-obovate : perianth salver- 

 form, with linear tube : flowers on subterranean pedicels, from a short rootstock. 

 6. Levicocriiium. Flowers white, very fragrant. Style slender and elongated, dilated 

 at the summit. Leaves narrowly linear, surrounded at base by scarious bracts. 



* * Inflorescence racemose or paniculate. 



- Flowers racemose on a naked scape from a tunicated bulb : fruit an ovate or oblong 



capsule. 



6. Camassia. Flowers blue (or white), slightly gibbous ; segments 8 to 7-nerved, spread- 



ing. Base of the style persistent. Raceme open. Leaves linear, flat. 

 - Flowers racemose, racemose-panicled, or in axillary fascicles, on leafy simple stems 

 from creeping rootstocks : fruit a globose berry. 



7. Polygonatum. Flowers white or greenish, gamophyllous, 6-lobed at the summit, in 



axillary pedunculate fascicles (or solitary). Stamens on the tube. Style slender, 

 deciduous. 



8. Stnilacina. Flowers white, with distinct perianth-segments, in a racemose panicle or 



simple raceme. Stamens at the.base. Style short, thick, persistent. 

 -- + Flowers racemose-paniculate upon a stout leafy or leafy bracteate stem from a stout 

 caudex or thick rootstock ; anthers sagittate : fruit a berry or capsule : leaves nu- 

 merous and crowded, linear, thick and more or less rigid, spinescent at apex. 



9. Yucca. Perianth campanulate, white or whitish, segments distinct. Filaments cla- 



vate. Style stout and persistent. Usually with stout woody caudex. 



II. Flower bracts none or foliaceous, a deciduous perianth with net-veined segments, 

 hypogynous stamens with extrorse anthers, deciduous styles united at least at base, 

 and the fruit a loculicidal (except Calochortus) capsule or a berry. 

 * Stems from a bulb or coated corm : fruit a many-seeded capsule : seeds horizontal or 



ascending. 



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

 w- Bulb scaly : stem simple, strict, leafy : anthers versatile. 



10 T,ilhim. Perianth-segments oblanceolate, with a linear nectariferous groove, usually 

 spotted. Style undivided. 



11. Frltillaria. Perianth-segments broader and concave, often mottled ; nectary a shal- 



low pit Styles united to the middle or throughout. 

 M- ++ Stem simple, low or dwarf, from a corm or tunicated bulb : anthers basifixed. 



12. Erythronium. Perianth-segments oblanceolate, strongly revolute, callous-toothed 



each side of the grooved nectary. Styles usually distinct above. Stem lax, 2-leaved. 



13. Lloydia. Perianth small, spreading, white with purplish veins and base. Style un- 



divided. Stem leafy, usually 1-flowered. Alpine. 



K - Outer perianth-segments smaller, somewhat sepal-like ; the inner broad and usually 

 bearded : stigmas sessile. 



14. Calochortus. Stem usually branched, from a coated corm. Anthers basifixed. 



Capsule usually septicidal. 



