82 CONVALLARIACEAE. 



3. Allium recurvatum Rydb. {A. cernuum of Coulter's Man., mainly.) On 

 banks and hillsides from the Black Hills of S. D. to B. C. and N. M.— Alt. 

 5000-8500 ft.— Colorado Springs; Cheyenne Mountain; Pike's Peak; Gunni- 

 spn ; Garden of the Gods ; North Cheyenne Canon ; Engelmann Canon ; Par- 

 lin, Gunnison County; Minnehaha; Yampa; Villa Grove; Cerro Summit; 

 Larimer County; mountains between Sunshine and Ward; Howe's Gulch; 

 Redstone; Poudre Cation; Clear Creek bottoms, below Georgetown; Em- 

 pire. 



4. Allium neo-mexicanum Rydb. In rocky places of Colo., N. M. and Ariz. 

 — Headwaters of Clear Creek. 



5. Allium cernuum Roth. In rich, rocky soil from N. Y. to Sask, Mont., 

 W. Va. and Colo., but very rare in the Rocky Mountain region. — Pagosa 

 Springs. 



6. Allium rubrum Osterhout. In rich ground from Colorado and Wyo- 

 ming. — North Park, Continental Divide; in pastures along Walton Creek. 



7. Allium Nuttallii S. Wats. In dry, rocky or sandy plains from S. D. to 

 Wyo., Kans. and Colo.— Alt. 4000-6000 ft. — Colorado Springs ; Denver ; south- 

 west of Ward, Boulder County. 



8. Allium macropetalum Rydb. In the mountains of Colo. — Palisades. 



9. Allium Geyeri S. Wats. {A. dictyotum Greene; A. reticulatum deser- 

 ticola Jones.) In dry soil and hillsides from N. D. to Wash, and N. M.— 

 Alt. 5000-11,500 ft. — Upper La Plata Caiion; Indian Creek Pass; Pagosa 

 Springs; near Ironton; Mt. Abram; Red Mountain road, near Ouray; Ci- 

 marron; Swallows, between Pueblo and Canon City; Dixon Canon; Ft. Col- 

 lins; mountains above Manitou; Como and vicinity; gulch west of Pen- 

 nock's; Spring Caiion; Moon's ranch; Dillon Canon; Medicine Bow Moun- 

 tains. 



10. Allium reticulatum Eraser. In dry, gravelly soil from Sask. to Idaho, 

 Colo, and Utah. — Alt. 5000-8500 ft. — Mesas near Pueblo; La Veta; Aztec; 

 Arboles; South Park; Soldier Caiion; Horsetooth Moun1;ain; Quimby; 

 Horsetooth Gulch. 



11. Allium Pikeanum Rydb. In rocky places in Colo. — Alt. 11,000-13,000 

 ft. — Pike's Peak: near Halfway House; Bald Mountain; Peak Valley. 



12. Allium acuminatum Hook. In dry soil from Mont, to B. C, Col., 

 Ariz, and Ore. — Alt. 6500-8500 ft. — Mancos; Cerro Summit; Honnold; Du- 

 rango; Dolores. 



13. Allium Brandegei S. Wats. From Ida. to Wash., Colo, and Ore. — Elk 

 Mountains ; Steamboat Springs ; Rabbit-Ear Range, Routt Co. 



Family 27. LILIACEAE Adans. Lilv Family. 



Plant with a short rootstock ; flowers subumbellate on subterranian pedicels from 

 the crown of the rootstock; petals and sepals united into a long tube. 



I. Leucocrinum. 

 Plant with bulbs or corms, either leafy-stemmed or scapiferous ; petals and sepals 

 distinct or nearly so. 

 Bulb scaly ; plant tall, leafy. 



Anthers versatile ; petals and sepals oblanceolate, clawed with a linear nec- 

 tariferous groove. 2. LiLiUM. 



