10 LILIALES 



Leaves normal. 



Flowers terminal or in terminal clusters. 



Flowers several to many in a terminal raceme, 



11. Vagnera. 



Flowers 1-3 in a simple umbel. 12. Disporum. 



Flowers axillary or in axillary clusters. 13. Salomonia. 

 Sepals and petals very unlike. 



Leaves alternate, long and narrow. 8. Calochortus. 



Leaves whorled. ovate. 14. Trillium. 



Climbing vines, often woody. 15. Smilax. 



1. Zygadenus. 257. 



Ovary partly inferior, perianth segments with obcordate glands. 



1. Z. elegans. 

 Ovary superior, glands ovate or semiorbicular, 2. Z. nuttallii. 



1. Zygadenus elegans Fursch. 



Common in the northwestern part of the state. Gordon; Fort Robin- 

 son; Sioux County; Rushville. 



2. Zygadenus nuttallii (A. Gray.) S. Wats. 



Along Pumpkinseed Creek in the western part of the state. 



2. Leucocrinum. 261. 



1. Leucocrinum montanum Xutt. Sand Lily. 



Common in the sand-hills in the western part of the state. Chadron; 

 Cheyenne County; Fort Robinson; Frontier County; McCook; Gor- 

 don; Perkins County. 



3. Allium. 262- 



Outer coat of the bulb membranous, not f.brous. 



Um^bel nodding. 1. A. cernuum. 



Umbel erect. 2. A. stellatum. 



Outer coat of the bulb fibrous. 

 Ovary and capsule not crested. 



Umbel composed largely of bulblets. 3. A. canadensis. 



Umbel with few or no bulblets. 



Scape usually over 3 dm. tall; pedicles over 15 mm. long. 



4. A. mutabile. 



Scape usually less than 2 dm. tall; pedicles less than 15 mm. 



long. 5. A. nuttallii. 



Ovary and capsule crested. 6. A. reticulatum. 



1. Allium cernuum Roth. Nodding Wild Onion. 



In prairies in the northern part of the state. Ewing; Pine Ridge. 



2. Allium stellatum Ker. Prairie Wild Onion. 

 In prairies in the northwestern part of the state. Belmont; Pine 

 Ridge; Sicux County. 



3. Allium canadensis L. 



Common in prairies in the eastern part of the state. Crete; Cush- 

 man; Emerson; Grand Island; Lincoln; AVood River.' 



4. Allium m.utabile Michx. Common Wild Onion. 

 Common in meadows and prairies throughout the state. Antelope 

 County; Callaway; Crete; Central City; Lincoln; Ponca; St. Paul. 



