CARDUACEAE. 355 



13. Aster violaceus Greene. In the mountains of Colo. — Mt. Harvard. 



14. Aster exiguus (Fern.) Rydb. {A. ciliatus Muhl.) On prairies and 

 plains from Vt. and Wash, to Pa. and Ariz. ; also in Mex. — Ft. Collins ; 

 Olathe; Gypsum; Sunset Cation. 



15. Aster crassulus Rydb. On plains from N. D. and Ida. to Colo, and 

 Calif. (?) — Alt. 4000-8000 ft. — Near Denver, Platte River; La Veta ; Gun- 

 nison ; Parlin, Gunnison Co. ; Seldon ; along Bear River, below Steamboat 

 Springs ; Pagosa Springs ; Gypsum ; Ft. Collins ; Hotchkiss. 



16. Aster multiflorus Ait. On prairies and sterile ground from Me. and 

 Mont, to Ga. and Mex. — Alt. 4000-5000 ft. — Near Bent's Fort; Ft. Collins. 



17. Aster polycephalus Rydb. (A. scoparius D. C. ; not Nees) On plains 

 and hills from Alb. and Neb. to Tex. and Ariz. — Alt. 4000-7000 ft. — Colorado 

 Springs ; McCoy ; Twin Lakes ; Ft. Collins ; Trail Glen ; Westcliffe ; Salida ; 

 Olathe ; Poudre River ; Baxter's ranch ; Poudre Cafion. 



18. Aster commutatus A. Gray. On plains and river banks from Minn, to 

 Wyo., to Kans. and Nev. — Alt. 4000-7000 ft. — Colorado Springs; Gunnison; 

 Westcliffe. 



ig. Aster falcatus Lindl. In valleys from Mackenzie and Alaska to Colo. 

 — Alt. about 8000 ft. — Doyles ; Gunnison Co. ; near Colorado City. 



20. Aster Lindleyanus T. & G. In valleys from Lab. and B. C. to N. H. 

 and Colo. — Poudre near La Porte. 



21. Aster laevis L. In open woodlands from Ont. and Sask. to La. and 

 N. M. — Westcliffe; Tobe Miller's ranch; Poudre River; Ft. Collins; Ruxton 

 Dell. 



22. Aster Geyeri (A. Gray) Howell. (A. laevis Geyeri A. Gray) Valleys 

 from Alb. and Wash, to Colo. — Alt. 6000-8000 ft. — Cheyenne Mountain ; 

 North Cheyenne Cafion ; Parlin, Gunnison Co. ; mountains, Larimer Co. ; near 

 Pagosa Peak; Engelmann Canon; Box Cafion, west of Ouray; Ft. Collins; 

 Redstone ; Poudre River ; Bosworth's ranch ; Palmer Lake. 



23. Aster Porteri A. Gray. In the mountains of Colo. — Alt. 5000-10,000 ft. 

 — Golden ; Lower Boulder Cafion ; Minnehaha ; Idaho Springs ; North Chey- 

 enne Canon ; Ft. Collins ; Bosworth's ranch ; Cheyenne Mountain ; between 

 Sunshine and Ward; canon west of Palmer Lake. 



24. Aster subracemosus Rydb. In valleys from Mont, and Colo. — Alt. 7500- 

 8500 ft. — Southeast of Ouray; North Park. 



25. Aster salicifolius Lam. On wooded banks from Me. and Ass. to Fla., 

 Tex. and Colo. — New Windsor; North Park; Ft. Collins. 



26. Aster paniculatus Lam. On wooded banks from N. B. and N. D. to 

 Va., Kans. and Colo. — Gypsum. 



27. Aster hesperius A. Gray. Along streams from Colo, to N. M. and Calif. 

 — New Windsor. 



28. Aster coerulescens DC. {A. salicifolius coerulescens A. Gray) On 

 rocky banks from Wyo. to Tex. and Colo. — New Windsor ; Ft. Collins ; 

 Olathe, Montrose Co. ; Gypsum ; Poudre River ; Home. 



29. Aster Osterhoutii Rydb. Along ditches in northern Colo. — New Wind- 

 sor. 



30. Aster fluviatilis Osterhout. Along streams in Colo. — New Windsor. 



31. Aster laetevirens Greene. Along streams in Colo, and Wyo. — Home; 

 Dale Creek, Larimer Co. 



