RANUNCULACEAE. 139 



14. Delphinium multiflorum Rydb. On mountain sides from Mont, to 

 Wash, and Colo. — Alt. about 8000 ft. — North Park; Columbine; divide road 

 to Steamboat Springs ; Wilson, San Miguel Co. 



15. Delphinium occidentale S. Wats. {D. quercetorum Greene.) On the 

 mountains from Wyo. to Utah and Colo. — Alt. 8000-10,000 ft. — Cerro Sum- 

 mit; Berthoud Pass. 



16. Delphinium reticulatum (A. Nels.) Rydb. {Delphinium occidentale 

 reticulatum A. Nels.) On mountain-sides in Wyo. and Colo. — Mouth of 

 Basin Creek; Upper La Plata Caiion. 



17. Delphinium Barbeyi Huth. (D. scopulorum suhalpinum A. Gray; 

 D. subalpinum A. Nels.) In shady places in the mountains of Wyo. and 

 Colo. — Alt. 8000-13,000 ft. — Cameron Pass; Boreas; Gray's Peak; Mt. Abram, 

 Ouray; Buffalo Pass; Columbine; near Ironton; Silver Plume; Indian Creek 

 Pass; near Pagosa Peak; Upper La Plata Caiion; Sangre de Cristo Creek; 

 Hinsdale Co. ; Empire ; Rabbit-Ears, Larimer Co. 



18. Delphinium alpestre Rydb. On alpine peaks, among rocks, in Colo. — 

 Alt. 10,000-13,000 ft. — Mountain northwest of Como; West Spanish Peak. 



6. ACONITUM L. Monkhood. 



Front line of the hood strongly concave, i. k., the beak long, porrect, almost 

 horizontal. 

 Lower sepals at least 54 as long as the lateral ones ; leaf segments rather broad. 



1. A. Bakeri, 

 Lower sepals V^-Vi as long as the lateral ones ; leaf segments narrow. 



2. A. porrectum. 

 Front line of the hood almost straight, s. e., the beak directed downward. 



Lateral sepals very oblique ; upper margin semi-reniform. 3. A. columbianum. 

 Lateral sepals moderately oblique ; upper margin slightly, if at all, concave. 



Flowers blue. 4. A. insigne. 



Flowers ochroleucous. 5. A. ochroleucum. 



I. Aconitum Bakeii Greene. {A. atrocyaneum Rydb.) In the mountains 

 of Colo., Wyo. and Utah. — Alt. 10,000-12,000 ft. — Boreas ; Steamboat Springs ; 

 gulch west of Bear River; Marshall Pass; Cameron Pass; near Ironton, San 

 Juan Co. 



^. Aconitum porrectum Rydb. In the mountains of Colo, and Wyo. — Alt. 

 6000-10,000 ft. — Graymont; Arapahoe Pass; foot-hills, Larimer Co.; Coffee 

 Pot Springs; Columbine; Pike's Peak; North Park; Villa Grove; La Plata 

 Mountains ; Lake City ; Rabbit-Ears, Larimer Co. 



3. Aconitum columbianum Nutt. In meadows and open woods from Mont. 

 to B. C, N. M. and Calif. — Alt. 9000-12,000 ft.^ — Ruxton Park ; Ruxton Creek ; 

 Pike's Peak; Ouray; Hinsdale Co. 



4. Aconitum insigne Greene. In the mountains of Colo. — Alt. 7000-11,000 

 ft. — Bosworth's ranch; Stove Prairie; Beaver Creek; Alpine Tunnel; Par- 

 lin, Gunnison Co.; Middle Park; foot-hills, Larimer Co.; Veta Pass; Sangre 

 de Cristo Creek; Central City; La Plata Mountains; near Pagosa Peak; 

 Eldora to Baltimore; Empire. 



5. Aconitum ochroleucum A. Nels. In the mountains of Colo, and Wyo. — 

 Alt. about 9000 ft. — Indian Creek Pass; Ruxton Park, Pike's Peak; Eldora 

 to Baltimore. 



