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. qucrcetorum 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 

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

 Basin Creek ; Upper La Plata Caiion. 



17. Delphinium Barbeyi Huth. (D. scopuloriim subalpiiium A. Gray; 

 D. subalpiiium 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; Buffala Pass; Columbine; near Ironton; Silver Plume; Indian Creek 

 Pass ; near Pagosa Peak ; Upper La Plata Canon ; 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, j. e., the beak long, porrect, almost 

 horizontal. 

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



1. A. Bakeri. 

 Lower sepals yi-Vj as long as the lateral ones ; leaf segments narrow. 



2. A. porrectum. 

 Front line of the hood almost straight, i. 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. ochroleucuin. 



1. Aconitum Bakeri 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. 



2. 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. 



