180 LILIACEJC. 



0, Stemless: leaves a pair, broad; flowers umbellate on an underground peduncle: ped- 

 icels 3-cornered prostrate and curved in fruit: stamens 3: styles 3, divergent. ... 23 



/. Stem with 3 broad leaves at top and a single flower: outer segments green 24 



9 3. Bracts greenish or scarious: flowers in a simple raceme or panicle: segments dis- 

 tinct, persistent: anthers small: styles or sessile stigmas persistent; capsule deeply 

 3-lobed. 



a. Stem tall, leafy: leaves large ovate to lanceolate, nerved, plicate: panicles large. 25 

 6. Stem from a coated bulb, leafy at base: leaves linear or grass-like, smooth. 



flowers white, erect: yellow glands at base of segments. ; 26 



Flowers yellowish or purplish, nodding glandless 27 



c. Stem equitant-leafy, from a rootstock: leaves slender^ anthers 2-celled, introrse. 



Flowers small, greenish, each with a cup-like or 3-lobed involucre 28 



Flowers yellowish-green: filaments woolly; style none 29 



d. Stem with a large tuft of grass-like stiff leaves from a rootstock: raceme of white 

 flowers very dense, long: anthers eztrorse: styles reflezed or coiled 30 



1. ATiTiTUM, Linnaeus. 

 1. Bulbs connected with rootstocks: leaves 2 or more: capsule not conspicuously 



crested. 



Scape round, 1-2 ft. high, exceeding the leaves: bracts 2, large, acuminate: bulb white. . 1 

 Scape flattened above: umbels often nodding: stamens and style slender; bracts united 



base , 2, S 



5 2. Bulbs without rootstocks: scape not flattened, slender: leaves very slender. 



a. Leaves 2 or more, shorter than, or scarcely exceeding the scape. 



Ovary obscurely crested: perianth rose: stamens included: scape 3-10 in. high... 4, 5, 6 



Ovary distinctly 6-crested. 



Perianth-segments white or light pink becoming thin and lax. 



Bracts 2, short, acute; stamens included 89 



Perianth rose-color: filaments deltoid-widened at base 10, 11 



Filaments filiform crests conspicuous 12, 13 



b. Leaves 2 or more, much exceeding the very short scape 14, 15 



3. Scape much flattened, 2-edged, short: leaves 2, linear, flat, falcate: flowers rose- 

 color. 



Bracts 2. stamens included 16, 17, 18 



Bracts 3-5 : stamens not included: leaves |-1 in. broad 19 



1. A. unifolium, Kell. Leaves 2-4: segments 5-7 lines long exceeding stamens. 



2. A. validum, Wats. Scape 1-3 ft high: bracts 2-4, broad: pedicels H in. long: 

 segments slender 3-4 lines long: bulb-coats white. Alpine, July to Sept. 



8. A. heematochiton, Wats. Scape slender, 4-12 in. high: bracts 2, short: flowers 

 deep purple or rose-color: bulb-coats deep reddish purple, shining. S. GaL Coast. 



