CHENOPODIACEAE. 115 



Plant less than i dm. high, prostrate ; leaves entire or merely hastately toothed. 



14. C. humile. 

 Leaves glandular, sweet-scented, pinnately lobed ; embryo horseshoe-shaped. 



Lobes of the leaves rounded or broadly oblong, more or less toothed. 



15. C. Botrys. 

 Lobes of the leaves lanceolate, entire. 16. C. cornutum. 



1. Chenopodium leptophyllum Nutt. On prairies, in waste places and fields 

 from Neb. to Mont., Mo. and Ariz. — Alt. 4000-8000 ft. — Gunnison ; Buena 

 Vista; Deer Run, Gunnison watershed; entrance to Grand Canon, 15 miles 

 from Grand Junction. 



2. Chenopodium oblongifolium (S. Wats.) Rydh. (C. leptophyllum oblon- 

 gifolium S. Wats.) On dry prairies and plains from N. D. to Wyo., Mo., 

 Tex. and Ariz. — Atl. 4000-7000 ft. — Crow Creek ; foot-hills, Larimer Co. ; 

 Fort Collins ; Wray. 



3. Chenopodium desiccatum Aven Nelson. Dry waste places in Colo. — Fort 

 Collins. 



4. Chenopodium Wolfii Rydb. In dry places in the mountains of Wyo. and 

 Colo. — Alt. 7000-10,000 ft. — Twin Lakes; Cheyenne Mountain; Crow Creek; 

 Grizzly Creek ; Parlin, Gunnison Co. ; Steamboat Springs. 



5. Chenopodium incanum (S. Wats.) Heller. (C. Frcmontii incanum S. 

 Wats.) In dry grounds, especially in prairie dog towns. — Alt. 4000-5000 ft. 

 —Crow Creek; Fort Collins. 



6. Chenopodium albescens Small. In dry soil from Tex. to Colo. — 

 Durango. 



7. Chenopodium Fremontii S. Wats. Among bushes and in canons from S. 

 D. to Mont., N. M. and Ariz. ; also in Mex. — Alt. 4000-9000 ft. — Vicinity of 

 Fort Collins; Sangre de Cristo Creek; Minnehaha; southeast of Ouray; 

 Poudre Canon. 



8. Chenopodium Watsonii A. Nelson. (C. olidum S. Wats.) In dry places 

 from Colo, to Ariz. — Alt. up to 10,000 ft. — ^Valley Spur. 



9. Chenopodium Berlandieri Moq. In dry soil from Mo. to Wyo., Fla. and 

 Tex. — Alt. 4000-9000 ft. — Sheepshorn Divide, North Park ; near Pagosa Peak ; 

 Huerfano Valley. 



10. Chenopodium album L. In fields and w-aste places ; introduced and 

 naturalized from Europe; from Newf. to Alb., Fla. and Calif.^Gunnison ; 

 about Fort Collins. 



11. Chenopodium glaucum L. In alkaline soil from Alb. to Colo, and Utah; 

 also in Europe. — Alt. 4000-8000 ft. — -Walsenburg; Steamboat Springs; New 

 Windsor; Gunnison; La Veta ; above Palisade. 



12. Chenopodium hybridum L. In waste places and around dwellings from 

 Que. to B. C, N. Y. and Utah.— Alt. 4000-8000 ft.— Park Range; Steamboat 

 Springs ; Mancos ; Hotchkiss, Larimer Co. ; Johnston Cafion ; Gunnison ; 

 Horsetooth Gulch ; gulch west of Soldier Caiion ; Big Creek Gulch. 



13. Chenopodium rubrum (L.) Reichenb. In alkaline flats and meadows 

 from N. Y. to Alb., Mo. and Colo. — Alt. 4000-8000 ft. — Hot Springs in San 

 Luis Valley; Mt. Harvard; Gunnison; West Clifif; Delta; north of Trap- 

 per's Lake ; falls of the Poudre. 



14. Chenopodium humile Hook. In alkaline meadows from Mont, to B. C, 

 Neb. and Colo. — Alt. up to 8000 ft. — Gunnison. 



