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 occidental 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 Canon. 



17. Delphinium Barbeyi Huth. (D. scopulorum subalpinum 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 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, i. e., the beak long, porrect, almost 



horizontal. 

 Lower sepals at least 2/4 as long as the lateral ones ; leaf segments rather broad. 



1. A. Bakeri. 

 Lower sepals Yz-Ys 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. cohimbianum. 

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



Flowers blue. 4- A. insigne. 



Flowers ochroleucous. 5- A. ochroleucum. 



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. 



