LILIACEiE. (lily FAMILY.) Ill 



* * Brads several, not sj^athaceous, distinct; capsule not lohed. 



-i- Perianth parted to the base or nearly so; segments spreading, closely 2-3-nerved; 

 stamens in one row at the base; anthers versatile; capsule obovoid or subglobose, sessile 

 or nearly so. 



Flowers grcenish-whitc; pedicels not jointed; leaves several Muilla. 2 



Flowers yellow; pedicels jointed; leaf solitary. Bloomeria. 3 



4- +- Perianth with segments more or less united and the stamens on the throat; 

 pedicels jointed. 



Perianth funuel-form, not saccate at the base, blue-purple, white or yellow . . Brodiaea. 4 

 Perianth tube G-saccate at base, deep scarlet Brevoortia. 5 



§ 2. Inflorescence racemose or paniculate. 



Flowers on a scape, blue Camassia. 6 



Flowers on a leafy stem, white. 



Stem from a large densely librous-coated bulb Chlorogalum. 7 



Stem from a creeping rootstock; leaves coi'date to lanceolate. 



Leaves many, sessile. Flowers 3-merous Smilacina. 8 



Leaves 2 or 3, mostly petiolate. Flowers 2-merous. . . .Maiantheirum. 9 

 Stem stout, with rigid sheathing bracts Yucca. 10 



Series II. Floral bracts none or foliaceous. Perianth deciduous (except in Trillium); 

 segments distinct. Stamens hypogynous or at the very base; anthers more or less extrorse 

 (introrse in Trillium). Styles deciduous (or sessile stigmas persistent). Flowers mostly 

 large and showy. 



§ 1. Stem more or less leafy from a bulb or corm. Fruit ca.psidar. 



* Perianth segments similar. 



Anthers distinctly versatile; style undivided Lilium. 11 



Anthers obscurely versatile; style divided to the middle Fritillaria. 12 



* * Perianth segments unlike. 



Anthers Jjasifixed; stigmas sessile Calochortus. 13 



§ 2. Stem from a rootstock. Perianth segments similar. Fruit a berry. 



Flowers apparently axillary on leafy branches Streptopus. 14 



Flowers terminating the leafy branches Prosartes. 15 



Flowers on a scape-like peduncle Clintonia. 16 



§ 3. Stem from a thick rootstock. Perianth segments dissimilar. 



Flowers umbellate subtended by a jmir of radical leaves Scoliopus, 17 



Flowers solitary subtended by a cauline Avhorl of 3 leaves Trillium. 18 



Series III. Perianth persistent; segments distinct. Stamens at the base of the perianth; 

 anthers extrorse, versatile, small, distinctly 2-celled (except in Veratrum). Styles distinct. 

 Flowers in simple racemes or panicles. 



