VIOLACEAE. 



1. Viola plustris L. Wet soil, Lab. and Alaska to N. Y. and Colo. Alt. 

 8500-10,000 ft. Grayback mining camps; Beaver Creek; banks of Michigan 

 River; Eldora to Baltimore. 



2. Viola blanda Willd. Swamps and wet meadows, Newf. and B. C. to N. 

 C. and Utah. Alt. 8000-10,000 ft. Caribou; headwaters of Clear Creek; 

 Columbine. 



3. Viola Macloskeyi F. E. Lloyd. Subalpine situations, Mont, and Ore. to 

 Colo, and Calif. Alt. about 9000 ft. North Park, Larimer Co. 



4. Viola LeConteana G. Don. (V. blanda amoena LeConte) Moist wood- 

 lands. N. S. and Ida. to N. C. and Colo. Alt. about 9000 ft. Chicken Creek. 



5. Viola pedatifida G. Don. Prairies, 111. to B. C. and Ariz. Alt. about 

 8000 ft. Wahatoya Canon. 



6. Viola retusa Greene. Woodlands and meadows, S. D. to Kans. and Colo. 

 Alt. about 5000 ft. New Windsor ; Ft. Collins ; Timnath, Larimer Co. 



7. Viola cognata Greene. Wet meadows, Alb. and S. D. to N. M., Ariz., 

 Utah and Calif. Alt 5000-10,000 ft. Bob Creek, West La Plata Mountains; 

 headwaters of Sangre de Cristo Creek; mountain near Veta Pass; West 

 Indian Creek; Cucharas Valley near La Veta; Timnath, Larimer Co.; Lake 

 City; Ft. Collins; plains and foot-hills near Boulder. 



8. Viola nephrophylla Greene. Meadows and thickets, Ida. and Wyo. to 

 Colo., Ariz, and Nev. Los Pinos. 



9. Viola Sheltonii Torr. Western Colo, to Calif. Alt. 8000-9000 ft. Grand 

 Mesa ; Cerro Summit. 



10. Viola Nuttallii Pursh. Prairies, plains and foot-hills, Man. and Mont, 

 to Mo., N. M. and Ariz. Alt. 4000-9000 ft. Walsenburg; southeast of La 

 Veta; Cucaras Valley and river near La Veta; Ft. Collins; southwest of La 

 Veta ; Rist Canon, Larimer Co. ; New Windsor, Weld Co. ; plains near Den- 

 ver ; Grand Mesa ; plains and foot-hills near Boulder. 



11. Viola linguaefolia Nutt. (V. vallicola A. Nels. ; V. physalodes Greene) 

 Foot-hills and mountains, N. D. and Mont, to Colo, and Utah. Alt. up to 

 7000 ft. Between Meeker and Craig ; mountains east of Steamboat Springs ; 

 Minturn, Eagle Co. ; Cimarron ; Dixon Creek ; Trinidad. 



12. Viola biflora L. Mountains of Colo.; also in Europe and Asia. Alt. 

 8000-10,000 ft. Jack Brook; headwaters of Clear Creek and alpine ridges 

 east of Middle Park; Argentine Pass; Eldora to Baltimore. 



13. Viola canadensis L. The typical V. canadensis of the east is repre- 

 sented in Colorado by the following subspecies : 



Viola canadensis Rydbergii (Greene) House. (V. Rydbergii Greene) 

 Radical leaves subreniform, as broad as long or broader, on elongated petioles; 

 pubescent at least on the veins beneath. Rocky Mountains, Alb. and Ida. 

 to S. D. and Colo. Alt. 5000-9000 ft. Ouray; Van Boxle's ranch above Ci- 

 marron ; near Pagosa Peak ; Mancos ; Steamboat Springs ; gulch of Bear 

 River, Routt Co. ; Cucharas Valley, near La Veta ; Ft. Collins ; Apex ; Villa 

 Grove; foot-hills, Larimer Co.; Rico; Boulder. 



Viola canadensis neo-mexicana (Greene) House. (V. neo-mexicana Greene) 

 Southern Colo, and N. M. Alt. 7500-12,000 ft. Idaho Springs; Wahatoya 

 Canon; Mt. Abram; about Ouray; Rico; Eldora to Baltimore. 



