587 Rydberg : Delphinium Carolinianum 



9. Delphinium Geyeri Greene, Erythea, 2 : 189 



This species is characterized by the strigose-canescent pubes- 

 cence, the ascending instead of erect pedicels, the large blue flow- 

 ers, the rather large bractlets, which often are half as long as the 

 sepals and borne close under them. The species would not be 

 placed in this group if it did not have squamellate seeds. These 

 are, however, only finely so, rather large, about 3 mm. long, 

 black, irregularly angled, but not wing-margined. The following 

 specimens are in our herbaria : 



Wyoming: Cheyenne, 1872, E. L. Greene; Laramie River, 

 1894, Ave7i Nelson, /(.oo. 



Colorado: Fort Collins, 1896, C. F. Baker. 



10. Delphinium Wootoni sp. nov. 



Perennial from a deep woody root, 1.5-2 dm. high, finely 

 grayish-strigose ; basal leaves rather numerous, grayish-strigulose, 

 rather firm, 3-5 -cleft to the base, the divisions cuneate in outline, 

 cleft beyond the middle into oblong or linear acute leaves ; stem- 

 leaves similar, very few ; raceme short, rather few-flowered ; ped- 

 icels erect, 1—2 cm. long ; bractlets linear, close under the calyx, 

 the latter light blue or white and tinged with blue or purple : 

 petals white, the upper ones tinged with yellow ; seeds unknown. 



This is closely related to D. albescens, but the position of the 

 bractlets, the grayish pubescence, the low stout habit and the firm 

 leaves with broad segments indicate some relationship with D , 

 Geyeri. In this, as in several other species, mature seeds are a de- 

 sideratum. 



New Mexico: Organ Mountains, 1893, E. 0. Wooton (type). 



Arizona : Ft. Huachuca, T. E. Wilcox. 



