94 SALICACEAE. 



senburg; Cucharas river, below La Veta; mesas near Pueblo; Fort Collins; 

 near Boulder ; gulch west of Pennock's mountain ranch ; Trinidad ; La Porte. 



3. Salix Fendleriana Anders. (S. pentandra caudata Nutt. ; 5". lasiandra 

 Fendleriana Bebb.) Wet mountain valleys and along streams from Alb. to 

 B. C, N. M. and Calif. Alt. 7000-10,000 ft. New Windsor; Gunnison; on 

 Turkey Creek and tributaries; Los Pinos; along the Uncompahgre River, 

 near Ouray; Ojo; Mancos ; Cimarron; Fort Collins; along the Conejos 

 River, north of Antonito ; Trail Creek ; Steamboat Springs. 



4. Salix exigua Nutt. On river-banks from Mackenzie River to Wash., 

 Colo, and Calif. Alt. 5000-10,000 ft. Plains, Colorado Springs ; Twin Lakes ; 

 North Park; Los Pinos; Trinidad. 



5. Salix luteosericea Rydb. On sandy river-bars from Neb. to Mont., Ida. 

 and Colo. Alt. 4000-6000 ft. Fort Collins ; plains, Larimer Co. ; Walsen- 

 burg; Sterling, Logan Co.; near Boulder; Elizabethtown ; Denver; Walton 

 Creek; along the Conejos River, north of Antonito; Rist Canon; Dolores. 



6. Salix stenophylla Rydb. Along streams from Tex. to Colo, and N. M. 

 Alt. 4000-8000 ft. Mancos; Cucharas River, below La Veta; Walsenburg; 

 Gunnison ; Cerro Summit. 



7. Salix linearifolia Rydb. (S. longifolia tenerrima Renders.) Along 

 streams from Minn, and Sask. to Wash., Ark. and Colo. Exact locality not 

 given. 



8. Salix sessiliflora Nutt. Along streams from Alb. to Mont., Colo, and 

 Nev. Alt. 4000-8000 ft. Grand Canon ; along Uncompahgre River, near 

 Ouray'; Grand Junction; Cerro Summit. 



9. Salix argophylla Nutt. Along streams from Mont, to Wash., Tex. and 

 Calif. Alt. about 5000 ft. Fort Collins ; Rist Canon. 



10. Salix cordata angustata (Pursh) Anders. In river-valleys from N. B. 

 to Wash., Va. and N. M. Alt. 4000-10,000 ft. Los Pinos; Walsenburg; 

 Cucharas River, below La Veta ; on Turkey Creek and tributaries. 



11. Salix Watsoni (Bebb.) Rydb. (S. cordata Watsoni Bebb.; 5. flava 

 Rydb.; not Schoepf.) In river-valleys from Mont, to Calif, and Colo. Alt. 

 6000-7000 ft. Manitou ; South Park; Middle Park; Walsenburg; Cucharas 

 Valley, near La Veta. 



12. Salix padophylla Rydb. In valleys from Mont, to N. M. Alt. 8000- 

 11,000 ft. Los Pinos; Pass Creek; Ojo; Bob Creek, West La Plata Moun- 

 tains ; North Park ; on Turkey Creek and tributaries ; Gunnison ; Carson ; 

 Silverton ; near Chambers' Lake ; Dolores. 



13. Salix pseudocordata Anders. (S. Novae- Angliae pseudocordata 

 Anders.) Along streams from Sask. to Alb. and Colo. Alt. 6000-7000 ft. 

 Manitou ; North Park ; South Cheyenne Canon. 



14. Salix monticola Bebb. In mountain valleys from Alb. to Ore., Colo, 

 and Nev. Alt. 2200-3000 ft. Pike's Peak ; Lake City ; Georgetown ; head- 

 waters of Sangre de Cristo Creek ; North Cheyenne Canon ; Chamber's Lake ; 

 Sheep Creek, above Campion's. 



15. Salix Wolfii Bebb. In mountain valleys of Wyoming and Colo. Alt. 

 8000-10,500 ft. South Park; Tennessee Pass; on Grizzly Creek; Ironton 

 Park, nine miles south of Ouray; North Park; Rico; Eldora to Baltimore; 

 Camp Creek, Larimer Co. 



