114 LILIACES. 
Flowers rose-purple to white: bracts broad: odor of onions..........0.sccesccecceces & 
Flowers greenish white: bracts narrow: slender leaves several..........+ bi aieiwie ervleieere 2" 
Flowers yellow: pedicels jointed at top: leaves one or several..... isd vase swan smc O 
b. 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 basifixed, 3 alternating with petaloid staminodia or smaller anthers‘ 
ovary nearly or quite sessile. ........ ccc cece escent reese eees oe ceeteeseseneens 4 
Perianth-tube thicker, opaque, not inflated or saccate: anthers basifixed, 3 alternating 
with petaloid staminodia: filaments decurrent to base: ovary sessile............. 5 
Perianth-tube not inflated or saccate: filaments in two rows (except sp. 11); anthers 
WOPSALIL Se sscuje. 5 cee csioisiaiesieid dela ewisielw emia mcidvideisaaxener arb ieee iste tsudeeacueroriiaieissiats Bicibiode's > 6 
Perianth-tube subcylindrical, 6-saccate at base, scarlet or crimson, the short segments 
yellowish: stamens 3 alternating with broad staminodia............--....- Serre 
* * Flowers on short scape-like pedicels, umbellate on an underground peduncle. 
Perianth salver-form; tube slender, 1-2 in. long; lobes half as long...............00++ 8 
** © Flowers in racemes or panicles; perianth segments distinct and anthers versatile 
, (except No. 12.) 
a. Stems scape-like or sparingly leafy, arising with many leaves from a bulb, 
Flowers blue or white, 4-1} in. long, slightly one-sided, in a simple raceme........... 9 
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....... 123 
b, Stems not scape-like, simple: rootstock slender: white flowers small. 
Leaves 2-ranked, sessile, often clasping, lanceolate to ovate....... sesiesess wees LS 
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 leaf-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 whorled: perianth segments similar: 
anthers versatile: style long: fruit a capsule: seeds flat, horizontal. 
Segments oblanceolate, with a groove: style entire: stigma large, 3-lobed........... 16 
Segments broader, not groved: style entire or 3-cleft; stigmas small................ 17 
b. Stem from a coated corm: anthers basifixed. 
Leaves a pair at the base, broad: perianth-segments similar, lanceolate, recurved.... 18 
Leaves few, linear-lanceolate: perianth-segments unlike, the inner (petals) broad.... 19 
c. Stem branching, leafy above: rootstock slender: flowers nodding or hanging, 
Flowers apparently axillary: anthers 1-2-awned or pointed above, sagittate.......... 20: 
Flowers white or greenish, terminal, in clusters or solitary, beneath the leaves..... 21 
d. Stem a scape or scape-like from a rootstock: large leaves basal: flowers umbellate or 
solitary, red or white: filaments hairy: ovary 2-celled: fruit a many-seeded berry. 23 
