LILIACE^. 309 



* Flowers more or less distinctly racemose. 



Stem leafy above; a scaly bulb at its base; 



Bulb-scales flattened; fl. with no nectaries LILIUM 1 



" " thick; fl. often with nectariferous glands FRITILLARIA 2 



Stem leafy at base only; bulb tunicated; 



Flowers blue, in a simple raceme , CAMASSIA 5 



' white, in a panicle of racemes CHLOROGALUM 6 



" white, with green markings; racemes mostly simple . . ZYQADENUS 9 

 Stem leafy; no bulb or corm at base; 



Leaves many, very narrow, coriaceous XEROPHYLLUM 10 



" not few, broad, thin; raceme short simple or com- 

 pound VAGNERA 11 



" 13 only; fl. dimerous. UNIFOLIUM 12 



* * Flowers not distinctly either racemose or umbellate, long- 

 peduncled, or very few, or solitary. 



Stem with 2 broad leaves at base only; all from a long bulb-like 



corm ERYTHRONIUM 3 



Stem cymosely or umbellately branching; leaves narrow CALOCHORTUS 4 



Leaves and 1-flowered scapes from fibrous root s SCOLIOPUS 7 



" 3 only, in a whorl beneath the solitary flower TRILLIUM 8 



Stem branching and leafy, with few nodding flowers at the ends 



of the branches; roots fibrous DISPORUM 13 



Stem few-leaved, 1 -3-floWered, from a scaly-bulb; 



Bulb-scales flattened LILIUM 1 



" notflattened FRITILLARIA 2 



* * * Inflorescence umbellate. 



Leaves ample; stem scapiform; no bulb or corm CLINTONIA 14 



Leaves narrow, and, with the scape, from a bulb or corm; 



umbel spathaceous bracted; 

 Pedicels jointed at base of the perianth; 



Scape tortuous or twining; perianth-tube thin, more or 



less inflated DICHELOSTEMMA 15 



Scape firmly erect, straight; 



Perianth with short tube and ( perfect stamens 3 HOOKER A 16 



spreading limb '* 6 CALLIPRORA 17 



Perianth funnelform TRITELEIA 18 



open-campanulate HESPEROSCORDUM 19 



Pedicels not jointed under the perianth; 



Scape and leaves from a corm; plants not alliaceous MUILLA 20 



Scape and leaves from a coated bulb; plants strongly 



alliaceous ALLIUM 21 



1. LILIUM, Pliny. Stem simple from a scaly bulb, leafy. Leaves 

 narrow, sessile, scattered or whorled. Flowers large, showy, in a ter- 

 minal raceme, or solitary, or subumbellate; pedicels not jointed. Peri- 

 anth deciduous, funnelform or broader, with 6 distinct equal oblanceolate 

 spreading or recurved segments, whitish or red, often spotted with 

 brown. Stamens 5, hypogynous, included; filaments long; anthers 

 oblong or linear, versatile. Style long, clavate, deciduous; stigma 

 3-lobed. Capsule coriaceous, 6-angled. Seeds many, flat, horizontal, in 

 2, rows in each of the 3 cells. 



