148 RvDBERG : Studies on the 



Buffalo Fork and Du Noir River, 1899, C. C. Curtis ; Snake 

 River, 1899, Aven & Elias Nelson, 6^0 /. 



Idaho : Henry's Lake, 1897, Rydbcrg & Bcssey, ^oyg. 



Colorado: North Park, 1896, C. F. Baker. 



Delphinium Brownii 



Perennial : stem about i m. high, glabrous and shining through- 

 out, simple : leaves palmately divided into about 5 divisions, 

 puberulent ; lower petioles 8-10 cm. long ; divisions 4-6 cm. long, 

 oblanceolate in outline, once to twice cleft into lanceolate, acute, 

 somewhat spreading lobes : inflorescence a rather lax raceme ; 

 bracts linear ; pedicels slender, 1-2 cm. long, almost erect, curved 

 and twisted ; upper portion sometimes slightly puberulent ; bract- 

 lets linear-subulate, small, 3-4 mm. long : sepals dark blue or 

 purple, oblong-oval, obtuse or the lower and upper acutish, 10—12 

 mm. long : lateral petals also blue or purplish ; blade cleft only 

 about one third its length ; upper petals of the same color or 

 paler, obliquely cuneate, acute ; spur short and rather thick, i cm. 

 or less long, straight and ascending : follicles erect, glabrous. 



This is nearest related to D. glauaoN, but differs in the puberu- 

 lent leaves with narrower segments, the lax raceme with more 

 erect pedicels and the darker flowers. 



Alberta : Banff, 1893, Addison Broivn (type in herb. Colum- 

 bia University). 



Alaska: Porcupine River, 1891, /. H. Turner. 



Delphinium elongatum 



Tall perennial with a short woody caudex : stem glabrous and 

 glaucous up to the inflorescence, which is slightly strigose : leaves 

 digitately divided into about 7 divisions, glabrous and glaucous 

 beneath; petioles fully i dm. long; divisions of the blade oblance- 

 olate in outline, 5-7 cm. long, cleft into lanceolate, acute lobes : 

 inflorescence strict and elongated ; bracts small, linear, almost fili- 

 form ; pedicels 1-2 cm. long, at first ascending, in fruit almost 

 erect ; bractlets minute, subulate : sepals and petals dark blue, the 

 former oval, obtuse or acutish, about i cm. long ; spur short, 

 straight, about 12 mm. long : lateral petals cleft at the apex, more 

 or less toothed: follicles erect, 12-15 mm. long, strigose-puberulent. 



In some respects nearest to D. glanaivi, but differing in the 

 puberulent pod, strigose pubescence at least on the pedicels, and 

 the narrower divisions and lobes of the leaves. It grows at an alti- 

 tude of about 2000 m. 



