Delphinium. RANUNCULACE.^3. ^3 



externally, obovate-oblong, obtuse, longer than tlic thick straight spur. Ujiprr 

 petals yellow (often tipped with blue), eniarginate: lower ones sparinu'ly 

 bearded on the inner surface and niar;t(ins, waved, unequally 3-k)bed, the 

 central lobe small and blue; one of the lateral lobes blue, the otlier yellow; 

 claw with a small spur-like process at the base. 



10. D. hicolor (Mutt.): pubescent; petioles somewhat dilated at the ba'^e; 

 leaves digitately 5-parted ; lobes 3-5-cleft; divisions linear, short, rather 

 acute; raceme lax, few-flowered, the pedicels elongated and spreading; spur 

 rather slender, as long as the sepals ; lower petals broadly obovate, entire, 

 sparingly bearded. — Niitt. ! in jour, acctd. P/iilad. 7. p. 10. 



Dry lulls near Flat-Head River, towards the southern sources of the Oregon, 

 Mr. Wijetli ! and in open plains on the sources of the Platte, Nulla II ! April. 

 — Stem about a span high. Leaves about 3, near the base of the stem, the 

 circumscription reniform; divisions short and radiating, slightly pubescent. 

 Lower bracteal leaves deeply 3-5-parted, with nearly undivided segments. tSe- 

 pals large, deep violet-blue, oblong-ovate. Upper petals yellow veined with 

 blue. Spur curved a little downward ; claw of the lower petals Avithout a 

 spur at the base. Carpels 3. 



11. D. 2i(iucij!orum (Nutt.l mss.) : "somewhat hirsutely pilose ; petioles 

 scarcely dilated ; leaves reniform, lobes bitid or trifid, linear and entire; 

 bracts simple minute ; raceme 3-5-{lowered ; spur subulate, straight, about 



the length of the oblong acutish^«*si* ; stigmas and styles smooth; root *t-/»*tS 

 grumous. 



" Rocky Mountains and Blue Mountains of the Oregon. — Scarcely a foot 

 high, slender ; the lower part and the stem more or less minutely and roughly 

 pubescent. Leaves nearly smooth on the upper surface ; two or three divided 

 ones on the stem, the uppermost beneath the flowers simple. Flowers 2-3, 

 large, blue. Lower petals with a central line of pubescence ; upper ones 

 hirsute externally. Carpels pubescent." Nittt. 



12. D. (lepauperatum (Nutt. ! mss.) : "lower part of the stem (and leaves) 

 glabrous ; upper part and the carpels densely villous ; petioles scarcely dilated ; 

 leaves reniform, o-parted; the lobes 2-3-cleft, oblong and rather broad; bracts 

 simple, minute ; rajcyiJI'- 1-5-flowered ; spur subulate, straight, longer than 

 the oblong obtuse ^e4«fe>; stigmas and styles pubescent; root grumous. 



" In the shade of pine woods in the Blue Mountains of the Oregon. — Stem 

 very slender, simple, about 2-leaved. Leaves scarcely an inch in diameter, the 

 lower one glabrous, with broad simple segments ; upper ones smaller, with 

 narrow linear segments. Upper part of the stem and carpels minutely villous. 

 Petals shorter than the spur ; lower ones hairy. Flower often solitary, deep 

 blue ; upper petals yellowish." Nutt. 



13. D. niidicaule: leaves all radical, on short petioles, 3-parted; lobes obo- 

 vate-cuneiform, the lateral ones 2-lobed, terminal one somcAvhat 3-lobed ; 

 scape racemose, loosely flowered ; pedicels elongated ; spur straight, longer 

 than the broadly ovate sepals ; upper petals a little exceeding the calyx, lower 

 ones 2-cleft, with a minute spur-like process at tjie base. 



California, Douglas '. — Scape 12-18 inches high, glabrous, 10-12-flowered. 

 Pedicels elongated, spreading, 2-4 inches long, above the bracteoles pubescent. 

 Bracts subulate, very small. Bracteoles minute, seated above the middle of 

 the pedicels. Flowers (in dried specimens) purplish-red. Sepals obtuse or mu- 

 cronate. Lower petals smooth on both sides ; margin sparsely fringed ; upper 

 ones emarginate. Spur thick. Carpels 3, recurved-spreading, reticulately 

 veined, pubescent. 



t D elegans{DC. syst. 1, p. 355.) was described from specimens transmitted by 

 Delile from Elgin Botanic Garden, New-York, li is known to be an introd"''»d 

 plant, and is therefore left out of our Florn. 



5 



