112 LILIACEiE. (lily FAMILY.) 



Stem from a thick rootstick; leaves Lroad and slicathing Veratrum. 19 



Stem from a bulb; leaves narrow Zygadenus. 20 



Stem covered with rigid bracts; leaves grass-like Xerophyllum. 21 



1. ALLIUM, L. Oniox. Leek. Garlic. 



Flowers deep rose-color to white. Capsule sub-globose or obovoid, inclosing the base 

 of the style between the lobes; the tiliform style jointed upon the short axis. Fila- 

 ments tapering upward from the dilated bases. Leaves one to several. Scape from a 

 coated bulb or corm. 



§ 1. Bulbs globose to ovoid, mostly solitary; leaves narrowly linear, 2 to 4, shorter tlian or 



equalinr/ the scape. 



1. A. attenuifolium, Kellogg. Leaves channeled; slender scape 6 to 15 inches high, 

 leafy below; spathe- valves short and abruptly acute; umbel usually dense; perianth 

 segments 3 or 4 lines long, oblong lanceolate, nearly white. 



2. A. serratum, Wat. Eesembling the last; leaves very narrow; spathe-valves 

 narrowly acuminate; the deep rose-colored perianth segments 4 to 6 lines long, broadly 

 ovate-lanceolate and rather rigid. 



3. A. bisceptrum, Wat. Bulbs light-colored; leaves often 2 or 3 lines broad; scapes 

 frequently in pairs; flowers few to many, rose-colored, 3 or 4 lines long, segments oblong- 

 lanceolate; the alternate filaments with a broad deltoid base; the thin crests of the ovary 

 conspicuous. 



4. • A. lacunosum, Wat. Flowers similar to the last, usually few (5 to 20) on pedi- 

 cels 3 to 5 lines long; filaments all narrowly deltoid at base; ovary scarcely crested. 



§2. Bulbs ovoid; leaves 2, broadly linear, flat and falcate, thick; scape stout, 'much com- 

 pressed and 2-iuinged, mostly shorter than the leaves; spathe 2-valved ; rose-colored 

 flowers. 



5. A. falcifolium, Hook & Arn. Scape 2 or 3 inches high; the spreading segments 

 of the perianth 4 to 6 lines long, nearly twice longer than the stamens and style, min- 

 utely glandular-serrate; capsule acute with 3 short narrow central crests. 



G. A. Breweri, Wat. Segments of the perianth nearly erect, not serrulate, a third 

 longer than the stamens; ovary with a thick slightly-lobed crest at the apex of each cell. 



§3. Bulb an ovoid corm iwopaguting by an offshoot from the loiver part of the tall terete 



scape ; capsvle not crested. 

 7. A. unifolium, Kellogg. Scape a foot or two high; flowers bright rose-color, 5 

 to 7 lines long, on pedicels an inch long or more. 



2. MUILLA, Watson. 

 Sufficiently characterized in the synopsis and by the solitary species. ; 



