LILIACE^. (LILY FAMILY.) 35J^ 



foW^: rwxrtM aboid an inch loiig.—Trom New Maxico to Oregon an.l 

 Labrador. 



3. S. sessiliJolia, Nutt. Rootstock slender : stem a foot or 2 high : 

 leaves lanceolate, acinmnate, sessile, usuallyjlat and sjtrmdiiKj, Konn-wlut 

 puberulent: raceme larger and jyedicels hiujcr (2 to 7 lines).— Watson in 

 Proc. Am. Acad. xiv. 245. From the Wahsatch to California and liritiAli 

 Columbia. Usually referred to »S'. stellata, 



9. YUCCA, L. Spanish Bayonet. 



Segments of perianth ovate-lanceolate, many-nfrvcd. Stif,nna.s emarginata 

 and more or less connate into a stigniatic tube. Fruit inioiiiiiU'lcly 6-celled. 

 Flowers usually solitary and nodding. —In ours the caudc.x is short or none. 



* Fruit baccate, pendidous : seeds thick, rugose, not marginal, tciOi. lobed or 

 ruminated albumen. 



1. Y. baccata, Torr. Leaves coarsely lilanientose en the margin, very 

 thick and rigid, 1^ to 3 feet long by an inch or 2 wide, channelled or con- 

 cave, rough especially on the back, tipped by a very stout brown spine: 

 panicle pedunculate : perianth-segments narrow, 2^ to 3 inches long : fruit 

 oval or cylindric, dark pur[)le, often long-beaked —S. Coloratlo and W. 

 Texas to S. California, and Northern ^lexico. 



* * Fruit capsular, erect : seeds thin, smooth, broadly margined, with entire 



albumen. 



2. Y. angustifolia, Pursh. Leaves filamentose on the margin, very 

 stiff and pointed, usually 1 to 3 feet long by 3 to 6 lines wide, smooth : ra- 

 ceme usually simple, nearly sessile, 1 to 4 feet long : flowei-s greeiiish-whito 

 or tinged with brown ; segments broadly ovate, an inch or two long : fruit 

 6-sided. From New Mexico to the Dakotas. 



10. LILIUM, K Lily. 



Stems leafy, simple : leaves narrow, sessile, whorled or scattered, net- 

 veined : flowers la^'ge and showy, in ours usually solitary and erect. 



1. L. Philadelphicum, L. Bulb small, of thick llcshy jointed st^alea : 

 leaves linear-lancfolate, wliorled or scattered : perianth-scgmentij reddish- 

 orange, coarsely spotted on the lower half, acute, sjjreading, abniptly nar- 

 rowed to the claw. —From Colorado to the Saskatchewan and eastward to 

 N. Carolina and Canada. 



11. PRITILLARIA, L. 



Stems erect, simple, leafy: flowers often nodding and much smallfr ili:iii 

 in Lilium. 



1. F. atropurpurea, Nutt Bulb of numerous thick .scales: Mnn 8 to 

 15 inches high or uwrr, 1 to G-HowenMl : Icnvcs 6 to 20. scattore.! or soni.'what 

 verticillate :/oi6-c/-5 dull purjile with more or lejis of yrlhnnsh green : styUsdis- 

 tinct above; stigmoiS linear: capsule acuidy angled, broadiy ubov<iU.—FTom 

 Wyoming to the Sierra Nevada. 



