156 aiEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



pilose ; flowers dark blue, sometimes variegated with white, some- 

 what nodding on the spreading pedicels ; spur straight, about i cm. 

 long, equalling and in a straight line with the lower sepals : upper 

 petals 3^ellowish white, tipped and tinged with blue ; ovaries densely 

 hairy; fruit not seen. 



The plant resembles a small D. glauami, especially in the form 

 of the leaves. It differs in the shorter and more pilose inflorescence, 

 the darker flowers, the lower and more tufted habit of the plant, and 

 the densely hairy ovaries. D. glaucitDi grows in rich soil in 

 meadows or open woodlands, while this species is found among rocks 

 at an altitude of nearly 3000 m. 



Yellowstone Park: Electric Peak, August 18, 1897, Rydbei'g 

 & Bcssey^ 4oy8 (type). 



Montana: Cedar Mountain, July 16, Rydbo-g d: Bcsscy, 4oyy. 



* Delphinium glaucescens multicaule. 



Stems several from a much branched caudex or rootstock, about 

 2 dm. high, almost glabrous, striate and man3'-leaved below : leaves 

 round in outline, divided to the base into 5-7 divisions, these gener- 

 ally^ twice cleft into linear lobes, which are usually diverging and 

 somewhat curved ; raceme simple, about 5 cm. long ; bracts linear- 

 subulate ; spreading pedicels and the flowers finely glandular pilose ; 

 flowers very dark blue ; spur stout, scarceh' i cm. long, generally 

 hooked at the end, or with a small more or less curved projection ; 

 ovaries finely pubescent. 



It closely resembles the species, but is much more bushv and less 

 pubescent : the segments of the leaves longer and much narrower ; 

 the flowers smaller and the spur generally curved. It grows in rock- 

 slides, at an altitude of about 3000 m. 



Montana: Cedar Mountain, July 16, 1S97, Rydbcrg ct- Bcsscy, 

 4.071. 



Delphinium bicoloi Nutt. Journ. Acad. Phil. 7 : 10 [Syn. Fl. i' : 48 ; 



Man. R. M. 11]. 



The typical D. bicolor is rather glabrate, as described by Gray and 

 Coulter, but it frequentl}'' grades into the following variety. It grows 

 at an altitude of 2000-3000 m. 



Montana: Little Belt Pass, 1896, Flodniau, 4j6 : Spanish Basin, 



4j7: Grizzly Creek, 1887, Tzi'cedx, iSj ; Flat Head River, .V/z/Za//; 



H^V'^//^; Spanish Basin, June 26, i8gj, Rvdbe?'g (£• Bcsscv, ^oyda ; 



Bridger Mountains, June 12, 4074: June 1^,4072: Custer Co., 1892, 



3frs. Light; Upper Marias Pass, 1883, Caiiby, ij. 



