30 RANUNCULACEiE. Delphinidm. 



On rocks, Hudson's Bay to Gf orgia ; west to Missouri ! fi. Big Blue Ri- 

 ver of the Platte, Nuttall! Rocky Mountains, Drummnvd. May-July. — 

 Root fusiform. Stem 12-18 inches high, and Avith the leaves, glabrous. 

 Leaves commonly biternate ; leaflets cuneiform, crenately lobed. Flowers 

 pendulous, scarlet externally, yellow inside. Spurs about an inch long, swol- 

 len and callous at the extremity. Ovaries pubescent. 



2. A. /orwosa (Fischer): spur straight, much longer than the limb; se- 

 pals lanceolate, acute, three times the length of the petals ; styles as long as 

 the sepals. — Finch, in DC. prodr. 1. p. 50. A. Canadensis, Bov^.! veg. 

 Sitcha. in viem. acad. St. Petersb. (6 se?:) 2. p. 124 ; Hook. ! jl. Bor.-Am. 

 1. p. 50. (in part.) 



Oregon, Nuttall ! Dr. Scovler ! Sitcha and Unalaschka, Bongard ! — 

 This species much resembles A. Canadensis; but differs in the comparative 

 nakedness of the stem, the upper part of which is clothed with a few small 

 leaves. The flowers are larger, pubescent and brighter colored, and the se- 

 pals are nearly as long as the spurs. 



3. A. ccBrulea TTorr.) : spurs straight, very slender, about twice as long as 

 the limb ; sepals rnomboid-ovate, acute, longer than the petals ; stamens and 

 style shorter than the corolla. — Torr. ! in ann. lye. New-York, 2. p. 164. 

 A. leptocera, Nutt. ! in joiirn. acad. Philad. 7. p. 9. 



Rocky Mountains, lat'. 40 \ Dr. James ! Mr. Wyeth! June.— Stem about 

 a foot high, slender, glabrous. Leaves mostly radical, glaucous beneath ; 

 leaflets deeply cleft. Flowers somewhat solitary, large, bright blue (ochro- 

 leucous, Nutt.). Sepals narrow at the base. Petals very obtuse. 



4. A. brevistyla (Hook.): someAvhat pubescent; spurs incun-ed, shorter 

 than the limb^ styles short, included; petals a little exceeding the stamens. — 

 Hook. fl. Bor.-Am. 1. p. 21. A. vulgaris? Richards, app. Frankl. jour, 

 ed. 2. p. 21. 



Western parts of Canada, as far north as Bear Lake, Dr. Richardson. — 

 Stem and leaves as in A. vulgaris, but the flowers (Avhich are blue) only half 

 the size. Sepals ovate-lanceolate. Carpels one inch long, pointed with a 

 short style. — Near A. vulgaris and A. cserulea. Hook. 



13. DELPHINIUM. Linn.; DC. syst. 1. p. 340. 



Sepals 5, deciduous, petaloid, irregular; the upper one produced into a spur 

 at the base. Petals 4, irregular ; the 2 superior ones furnished with a spur- 

 shaped appendage at the base, inclosed in the spur of the calyx. Ovaries 1-5, 

 mostly 3. Follicles many-seeded. — Annual or perennial herbs Avith erect 

 branched stems. Leaves petiolate, palmately divided. FloAvers in terminal 

 raceixies, commonly blue. — Larkspur. 



§ 1. Ovary solitary : petals united into one: inner spur of one piece: 

 annual. — Consolida, DC. 



1. D. Consolida, (Linn.) : stem erect, someAA'hat glabrous, divaricately 

 branched ; floAvers few, in a loose raceme ; pedicels longer than the bracts ; 

 carpels smooth. DC. prodr. 1. p. 51 ; Pursh! fl. 2. p. 372. 



" Near Staunton, and on dry hills near the South Mountain [Virginia] na- 

 tive." Pursh., in herb. Barton .'—In fields, and along road-sides ; introduced 

 from Europe, and almost naturalized. July. 



