138 RANUNCULACEAE. 



Plant tall, 4-20 dm. high, not cespitose. 

 Follicles viscid pubescent. 



Flowers light blue or yellowish, tinged with blue or purple. 



14. D. multiAorum. 

 Flowers dark blue. 15. D. occidentale. 



Follicles glabrous. 



Sepals obtuse. 16. D. reticulatum. 



Sepals acute or acuminate. 17. D. Barbeyi. 



Plants about i dm. high, cespitose, viscid pubescent. 



18. D. alpestre. 



1. Delphinium Penardii Huth. On dry plains of Colo. — Alt. 5000-8000 ft. — 

 Horsetooth Gulch; bank of Arkansas River; Poudre flats, north of Ft. Col- 

 lins; Ft. Collins; Dixon Caiion; near Badito; Wahatoya Creek; Brantly 

 Caiion, Las Animas Co. 



2. Delphinium camporum Greene. On dry plains from Colo, to Tex. and 

 Ariz. — Alt. 4000-8000 ft. — Plains and foot-hills near Boulder; New Windsor; 

 near Badito; Walsenburg. 



3. Delphinium albescens Rydb. In meadows from Ills, to Man., Ind. Terr, 

 and Colo. — Alt. 4000-5000 ft. — Ft. Collins. 



4. Delphinium bicolor Nutt. Hills and plains from Ass. and Wash, to S. D., 

 Utah and Ore. — Also reported from Colorado; but doubtful. 



5. Delphinium Nelsonii Greene. On hillsides from Alb. to Wash., Neb. 

 and Utah. — Alt. 4000-10,000 ft. — Four-Mile Hill, Routt Co.; hills west of 

 Soldier Cafion ; Horsetooth Gulch ; Dolores ; Ouray ; Howe's Gulch ; Rist 

 Caiion; Spring Caiion; Table Rock; Grand Junction; Wyoming State line; 

 Minturn, Eagle Co.; Ft. Collins; foot-hills, Larimer Co.; Chicken Creek; 

 Los Pinos ; Van Boxle's ranch, above Cimarron ; foot-hills west of Ft. Col- 

 lins ; Mesa Verde ; Cerro Summit ; Ironton ; Apex ; near Boulder ; Steamboat 

 Springs; Beaver Creek, Larimer Co. 



6. Delphinium dumetonim Greene. In the mountains of Colo. — Alt. about 

 7000 ft. — Cimarron. 



7. Delphinium scaposum Greene. On dry plains from Colo, to N. M. and 

 Ariz.— Alt. about 7000 ft. — Mancos. 



8. Delphinium geraniifolium Rydb. On hills from Colo, and Ariz. — Colo- 

 rado Springs. 



9. Delphinium Geyeri Greene. On the plains from Wyo. to Colo. — Alt. 

 5000-7000 ft. — Foot-hills, Larimer Co.; Rist Caiion; Horsetooth Gulch; hills 

 south of Horsetooth Mountain ; plains near Ft. Collins ; Livermore, Larimer 

 Co. ; New Windsor. 



10. Delphinium cuculatum A. Nels. On mountain sides from Mont, and 

 Ida. to Colo.— Alt. about 9000 ft.— Four-Mile Hill, Routt Co. 



11. Delphinium rohustum Rydb. In mountain meadows from Mont, to N. 

 M. — Alt. 6000-9000 ft. — Wahatoya Creek; La Veta; Colorado Springs; In- 

 dian Creek Pass ; foot-hills, Larimer Co. 



12. Delphinium elongatum Rydb. On hills and mountains of Colo.— Alt. 

 7000-10,000 ft. — Elk Caiion; Baxter's ranch; foot-hills, Larimer Co.; Villa 

 Grove; alpine ridge east of Middle Park; headwaters of Clear Creek. 



13. Delphinium ramosum Rydb. In cafions and on mountain sides in Wyo. 

 and Colo.— Alt. 6000-9000 ft.— Crystal Park; Williams' Canon; Artists' Glen; 

 North Cheyenne Caiion; Idaho Springs. 



