114 LILIACE^. 



Flowers rose-purple to white: bracts broad: odor of onions 1 



Flowers greenish white: bracts narrow: slender leaves several , 3 



Flowers yellow: pedicels jointed at top: leaves one or several 3 



6. Perianth not parted to the base: stamens on the throat. 



Perianth-tube thin, somewhat inflated and angular or saccate: stamens on the throat in 



one row; anthers basiflxed, 3 alternating with petaloid staminodia or smaller anthers- 



ovary nearly or quite sessile , 4 



Perianth-tube thicker, opaque, not inflated or saccate; anthers basiiized, 3 alternating 



with petaloid staminodia: filaments decurrent to base: ovary sessile 6 



Perianth-tube not inflated or saccate: filaments in two rows (except sp. 11); anthers 



versatile 6 



Perianth-tube subcylindrical, 6-saccate at base, scarlet or crimson, the short segments 



yellowish: stamens 3 alternating with broad staminodia 7 



" * Flowers on short scape-like pedicels, umhellaie on an underground peduncle. 



Perianth salver-form; tube slender, 1-2 in. long; lobes half as long 8 



* * * Mowers in racemes or panicles; perianth segments distinct and antJiers versatile 



{except N'o. IS.) 

 a. Stems scape-like or sparingly leafy, arising with many leaves from a bulb. 



Flowers blue or white, J-IJ in. long, slightly one-sided, in a simple raceme S 



Flowers white or whitish, 2-5 lines long in a dense nearly simple raceme 10 



Flowers white or pinkish, scattered on branches: withering perianth twisted. 11 



Flowers white or yellowish, paniculate: perianth-tube equaling reflexed lobes 13 



6. Stems not soape-like, simple: rootstock slender; white flowers small. 



Leaves 2-ranked, sessile, often clasping, lanceolate to ovate 13 



Leaves 2, rarely 3, petioled, cordate: perianth-segments 4: stamens 4 14 



c. Stems rigid: lower bracts and rigid leaves spine-tipped; flowers 1-3 in. long 15 



§ 2. Floral bracts none or l6af-like: perianth segments distinct, deciduous: anthers 



extrorse or opening on the sides. In No. 24 the perianth is persistent: anthers 



introrse. 

 a. Stem simple, from a scaly bulb; leaves often wborled: perianth segments similar: 



anthers versatile: stylo long: fruit a capsule: seeds flat, liorizontal. 



Segments oblanceolate, with a groove: style entire: stigma large, 3-lobed 19 



Segments broader, not groved: style entire or 3-cleft; stigmas small 17 



6. Stem from a coated corm: anthers baaiSxed. 



Leaves a pair at the base, broad: perianth-segments similar, lanceolate, recurved 18 



rLeavesfew, linear-lanceolate: perianth-segments unlike, the inner (peials) broad.... 19 



c. Stem branching, leafy above; rootstock slender; flowers nodding or hanging. 



Flowers apparently axillary: anthers I-2-awned or pointed above, sagittate 20 



Flowers white or greenish, terminal, in clusters or solitary, beneath the leaves 21 



d. Stem a scape or soape-like from a rootstock; large leaves basal; flowers umbellate or 

 solitary, red or white: filaments hairy; ovary 2 celled: fruit a Tiany-seeded berry. 33 



