386 CARDUACEAE. 



Pa. and Calif. AH. 5000-9000 ft. Honnold ; Higho; Ft. Collins; Cucharas 

 Valley, near La Veta; Middle Park; Poudre River. 



12. Artemisia saxicola Rydb. (A. Chamissoniana saxatilis Besser; A. 

 Norvegica A. Gray; not Fries) On the higher rockies of Colo, and Wyo. 

 Alt. 11,000-13,000 ft. Gray's Peak; Silver Plume; Long's Peak; Cameron 

 Pass; Mt. Harvard; Berthoud Pass; headwaters of Clear Creek; Empire; 

 Ethel Peak. 



13. Artemisia Parryi A. Gray. On alpine peaks of Colo. Sangre de Cristo 

 Pass. 



14. Artemisia silvicola Osterh. In the mountains of Colo, and N. M. 

 Alt. about 8000 ft. Mclntyre Creek, Larimer Co. ; near Pagosa Peak. 



15. Artemisia natronensis A. Nels. In valleys of Wyo. and Colo. Alt. 

 7000 ft. Cucharas Valley, near La Veta. 



16. Artemisia pudica Rydb. On dry ground in the mountains of Colo. 

 Ah. about 7700 ft- Gunnison. 



17. Artemisia rhizomata A. Nels. In valleys from Alb. and Ida. to Colo. 

 Alt. 8000-10,000 ft. Ruxton Park; Ruxton Dell; Columbine; Pitkin; Bos- 

 worth's ranch, Stove Prairie. 



18. Artemisia gnaphaloides Nutt. On prairies and river banks from N. D. 

 and Wyo. to Ark. and Colo. ; also introduced eastward to Ont. and N. Y. 

 Alt. 4000-9000 ft. Gunnison; on Grizzly Creek; Trail Glen; Ft. Collins; Bos- 

 worth's ranch, Stove Prairie; above Poudre; Middle Park; Denver; New 

 Windsor ; Larimer Co. ; Colorado Springs. 



19. Artemisia pabularis (A. Nels.) Rydb. (A. rhizomata pabularis A. 

 Nels.) In dry valleys from Neb. and Wyo. to Colo. 



20. Artemisia ludoviciana Nutt. On prairies and in canons from Mo. and 

 Wyo. to Tex. and Ariz. Alt. 4000-8000 ft. Idaho Springs ; Engelmann 

 Canon ; Manitou ; between Porter and Durango ; near Empire. 



21. Artemisia Underwoodii Rydb. On chaparral-covered hills and moun- 

 tain sides in Colo. Alt. 7500-9000 ft. Ouray; Georgetown. 



22. Artemisia Brittonii Rydb. Dry hills and plains of Colo, and Utah. 

 Alt. 5000-9000 ft. Boulder ; Empire ; Golden ; Poudre River flats. 



23. Artemisia diversifolia Rydb. In valleys from Ida. and B. C. to Colo, 

 and Wash. Pike's Peak. 



24. Artemisia Wrightii A. Gray. On dry plains of Colo, and N. M. 

 Southern Colorado ; exact locality not given. 



25. Artemisia Bakeri Greene. On dry plains and in canons from Colo, to 

 N. M. and Ariz. Alt. up to 7000 ft. Black Canon ; between Porter and 

 Durango. 



26. Artemisia coloradensis Osterh. In mountain valleys from Colo, to 

 Ariz. Alt. 7000-10,000 ft Dale Creek, Larimer Co.; Marshall Pass; Pine 

 Grove ; Rustic ; Soldier Canon ; San Luis Valley ; Lake City. 



27. Artemisia kansana Britton. (A. stcnoloba Rydb.) On dry plains from 

 Kans. and Colo, to N. M. Alt. 4000-7000 ft. Cucharas Valley, near La 

 Veta. 



28. Artemisia fraserioides Greene. In the mountains from Colo, to N. M. 

 and Mex. Alt. about 9000 ft Near Pagosa Peak ; Roubadeaux Pass ; Lake 

 City. 



29. Artemisia elatior (T. & G.) Rydb. In mountain valleys from Macken- 



