WOOTON AND STANDLEY FLORA OF NEW MEXICO. 245 



Flowers blue. 



Leaves vsdth. numerous narrow segments; inflores- 

 cence short; flowers small, crowded 4. D. confertifiorum. 



Leaves with few broad segments; inflorescence 



scapoae; flowers large and scattered 5. D. scaposum. 



Plants tall, 1 meter high or more, vdth. leafy stems. 



Segments of the leaves more or less oblong to linear, 



abruptly acute, only the basal segments cuneate; 



pubescence of short, curled, closely appressed 



hairs, rarely if ever glandular. 



Bracts of the inflorescence expanded and at least the 



lowest resembling foliar leaves 6. D. amplihracteatum. 



Bracts of the inflorescence narrowly linear. 



Plants robust, 2 meters high or more 9. D. robustum. 



Plants of medium height, about 1 meter tall. 



Ultimate segments of the leaves oblong 7. D. scopulorum. 



Ultimate segments of the leaves narrowly 



linear 8. D. tenuisectwm. 



Segments of the leaves narrowly diamond-shaped in out- 

 line, with acute or acuminate apex and cuneate 

 base; pubescence of spreading hairs, more or less 

 glandular, at least in the inflorescence (except in 

 no. 10). 

 Flowers dull brownish or greenish purple. 



Leaf segments 10 to 20 mm. broad 12. D. sapellonis. 



Leaf segments narrow, 7 mm. wide or less 11. D. sierrae-hlancae. 



Flowers deep blue. 



Sepals acuminate 13. D. cockerellii. 



Sepals not acuminate, at least a part of them 

 obtuse. . 

 Leaf segments broad; leaves yellowish green. 14. D. macro phy Hum. 

 Leaf segments very narrow; leaves dark 



green above 10. D. novomexicanum. 



1. Delphinium, nelsonii Greene, Pittonia 3: 92. 1896. 

 Type locality: Wyoming. 



Range : Washington and Nebraska to Utah and northern New Mexico. 

 New Mexico: Chama; TierraAmarilla; Stinking Lake. Open slopes, in the Transi- 

 tion Zone. 



2. Delphinium alpestre Rydb. Bull. Torrey Club 29: 146. 1902. 

 Type locality: Mountains northwest of Como, Colorado. 

 Range: Colorado and northern New Mexico. 



New Mexico: Timber line above Baldy; Wheeler Peak. Meadows, in the Arctic- 

 Alpine Zone. 



3. Delphinium camporum Greene, Erythea 2: 183. 1894. 

 Delphinium wootoni Rydb. Bull. Torrey Club 26: 583. 1899. 



Type locality: "A plant of dry sandy plains along the eastern base of the whole 

 Rocky Mountain range, apparently from British America to Mexico." 



Range: Colorado to Texas and Arizona. 



New Mexico: Nara Visa; Mangas Springs; flats near Nutt; Organ Mountains; Jor- 

 nada del Muerto. Dry plains and hills, in the Upper Sonoran Zone. 



The type of D. wootoni was collected in the Organ Mountains. 



