194 RANUNCULACEAE (bUTTEECUP FAMILY) 



or longei; than, the spur: lateral petals 2-cleft at the apex, slender-clawed, and 

 bearded within.— Southern Colorado. , ■ 



10. Delphinium subalpinum (Gray) k. Nels. Bull. Torr. Bot. Clyib 27: 263. 

 1900. Tawny pubescent espepially above and in the inflorescence, more or 

 less viscid; stems simple, erect, 5-15 dm. high: Ipaves, deeply cleft into about 

 5 segments which are variously incised or gash-toothed, nearly glabrous; 

 raceme simple, short and compact (1 dm. long); pedicels longer than the 

 spurs of the uniformly very deep blue flowers:, lower petals with narrow claw 

 and oval deeply notched bladej the lobes dentate: ovaries glabratf, bluish: 

 follicles short-oblong, glabrous. [,(?) D.^orftei/iHuth. Bull. Herb. Bo;^s. 1: 335. 

 1893.] — In large dense beds at subalpine stations;. Cplorado and Wyoming. 



11. Delphinium reticulatum A. Nels. 1. c. 261. Near the preceding, more 

 pubescent but viscid in the inflorescence only; stems usually several from the 

 large woody root, 5-10 dm. high, and more or less branched above: leaves 

 with 3-5 broadljr cuneate divisions which are 3-cleft into inore or less toothed 

 lobes: raceme simple or branched, becoming elongated; fliowers dull or dark 

 blue, more or less streaked with white: spur longer than the sepals; lower 

 petals with ovate, bifiij,' more or less bearded blade: follicles erect, 10 mn^ 

 long, conspicuously reticulated with dark lines, slightly pubescent or viscid- 

 pubescent. (D. muUiflorum Rydb. Bull. Torr. Bot. Club 29: 147. 1902; D. 

 oceidentale Wats, as to our range.)-"— From northern Colorado to Montana 

 and Idaho. 



12. Delphinium Cockerellii A. Nels. Bot. Gaz. 42: 51. 1906. Tawny pubes- 

 cent on stems and in the inflorescence, densely and yiscidly so above, the 

 leaves jbbscurely pubescent: stems nearly siniple or bushy-branched, 6^12 dm. 

 high: leaves large, often 12-18 cm. in diameter, the veins strikingly superfi- 

 cial, about 5-cleft orr parted into broadly oblong or oblong-cuneate diyiSioiis, 

 these merely coarsely toothed or incised above the middle: racemes often 

 several, op^n, with rather long peduncles and pedicels and few flowers (5-10); 

 flowers bright purple, large (3-4 cni. long) : sepals oblong-lanceolate, acute, 

 about as long as thetjiick curved spur: petals small;, the upper yellowish- 

 white, concealed within the upper sepal; the lower purple, with suborbicular. 

 blade, cleft and sparsely hirsute-ciliate. — Mountains of southern; Colorado 

 and of New Mexico. 



13. Delphinium alpestre Rydb. Bull. Torr. Bot. Club 29': 146. 19p2. Pu- 

 berulent, viscid above, caespitose, only 1-2 dm. high; leaves digitate, the 

 divisions cuneate-bbovate, divided hsjlf way into oblong mucronate lobes: 

 inflorescence short, few-flowered, viscid: sepals blue as are also the upper 

 petals: lower petals 2-cleft; the: lobes lanceolate.— Alpine, among rocks; 

 Colorado and New Mexico. ' 



.14. Delphinium cucullatum A. Nels. Bull. Torr. Bot. Club 27: 262. 1900. 

 Stems numerous, clustered on thick woody roots,- 8-15 dm. high, glabrous 

 nearly to the inflorescence, leafy: leaves finely pubesc^nt^ 10-18 cm. in diam- 

 eter, 3-7-divided, the segments cuneate and very irregularly cleft and gashed 

 at the apex: racemes usually several, very closely flowered, densely pubescent 

 (not vispid or glandular): sepals yeHow;ish- white or bluish, aU distinctly 

 hooded, shorter than the spur: petals blue, the lower pair with slender claw 

 having a conspicuous saccate nectary at base; the blade cleft to near the 

 middle: ovaries densely white-pubescent.— Known as yet only from north- 

 western Wyoming, on Snake River. 



15. Delphinium glaucescens Rydb. Mem. N. Y. Bot. Gard. 1: 155., 1900. 

 Stems several or many from a thick caudex, pubescent, especially above, ,» 

 in age glabrateand glaucous, 3-8 dm. high; leaves 'finely puberulent, more 

 or less glaucous and tending to become glabrous, with 5-8 cuneate divisions 

 which iare mostly 3-cleft: raceme simple, rather short; the lower bracts ex- 

 ceeding the flowers: flowers blue, or variegated with white, finely pilose: spur 

 as long as the lower petal: ovaries densely hairy: follicles erect, oblong, pu- 

 bescent. (D. ramosum Rydb. Bull. Torr. Bot. Club 28: 276. 1901; D. elon- 

 gaium Rydb. 1. c. 29: 148; D. querc^nim Greene, PI. Baker. 3: 4. 1901.)— 

 Montana to Colorado. 



