Delphinium. RANUNCULACE^. 31 



§ 2. Ovaries 3-5; petals not coherinsr^ the inferior ones 2-cleft : sprir 

 elongated: perennial. — Dt'lphinastrum, DC. 



2. D. e.raltattim (Ait.): petioles not dilated at the base ; leaves deeply 3- 

 5-cleft ; lobes cuneiform, divaricate, 3-cleft, acuminate ; raceme strict ; spur 

 straii^ht, as long as the calyx; lower petals deeply 2-cleft, sparingly beard( d ; 

 with a minute spur-like process at the base of the claw. — Ait. Keic. (ed. 1.) 



2. p. 2H; DC. prodr. 1. /;. 51 ; Pur.';h, fl. 2. p. 371 ; Ell. sk. 2. p. 18 ; 

 Hook. ft. Bnr.-Ani. \. p. 25. D. tridaetykim, Michx.! Jl. 1. p. 314. D. ur- 

 ccolaturn, Jacq. ic. rar. 1. t. 91. (fide Hook.) D. alpmum, Waldst. and 

 Kit. 3. /. 246. (fide Hook.) 



Canada to South Carolina! Kentucky, Short! Ohio, Eiddell. June- 

 Aug. — Stem 2—1 feet high, glabrous below, pubescent towards the summit. 

 Lower leaves 4-5 inches in diameter, about 5-cleft ; upper ones somewhat 

 3-parted, with the divisions incised and widely spreading; lateral ones 2- 

 lobed. Racemes, and outer surface of the sepals, canescent. Flowers bright 

 blue (sometimes white, Drummond). Sepals with a pubescent, yellowish, 

 longitudinal line externally. Limb of the upper petals entire. Carpels 3, 

 straight, 



3. D. Californicum: petioles dilated at the base ; leaves palmately 3-5- 

 cleft ; divisions incisely 3-lobed; raceme strict, and Avith the flowers, pubes- 

 cent ; spur as long as the calyx, somewhat incurved ; limb of the superior 

 petals notched; lower ones 2-cleft, densely bearded on the inside ; the claw 

 furnished with a minute spur-like process at the base. 



California, Douglas ! — Stem smooth below. Lower leaves deeply 5-cleft ; 

 the divisions cuneiform, 3-lobed ; segments of the upper leaves lanceolate, 

 divaricately lobed. Flowers as large as in D. exaltatum, pale blue ? Ovaries 



3. Petals as long as the sepals. 



4. D. tricorne (Michx.): petioles slightly dilated at the base ; leaves .5- 

 parted, with the divisions 3-5-cleft ; lobes linear, acutish ; petals shorter than 

 the sepals, the lower ones 2-cleft and bearded w:ithin; spur straight, as long 

 as the calyx, ascending. — Mich.r. ! Jl. 1. p. 314 ; Pvrsh ! Jl. 2. p. 371; DC. 

 prodr. 1. p. 54 ; Deless. ic. 1. t. 59 ; Ell. sk. 2. p. 18. 



Hills and woods, Pennsylvania! Virginia ! Louisiana and western States! 

 to Arkansas \ April-May. — Sparingly pubescent. Stem 6-18 inches high. 

 Root tuberous. Leaves with an orbicular circumscription. Raceme some- 

 what loose, 6-12-flowered. Flow^ers bright blue, sometimes white, pubescent. 

 Lower petals densely bearded ; claw slightly gibbous at the base. Carpels 

 3, ovate, spreading, reticulately veined. 



5. D. Menziesii (DC.) : petioles slightly dilated at the base ; leaves 3- 

 parted; lobes 3-cleft, linear, entire; bracts 3-cleft; raceme strict; petals 

 bearded; spur straight, longer than the limb; root grumous. DC. syst. 1. 

 p. 355; Hook. Jl. Bor.-Am. 1. p. 25; Bat. reg. t. 1192. D. simplex, Hook. 

 I.e. 



fi. ochroleuca (Nutt.! mss.): "flowers pale yellow, the tips of the sepals 

 only blue." 



Western coast of America ! from California to Kotzebue's Sound, and on 

 the plains of the Oregon ! down to the sea, (never in the shade of the forest, 

 Nutt.) 0. Open prairies and along the banks of the Wahlamet, Nuttall ! — 

 Root grumous and tuberous. Stem from a span to two or more {eet high, 

 nearly simple but sometimes paniculately branched, and as well as the 

 leaves, pubescent. Raceme elongated; rachis and pedicels velvety-pubes- 

 cent. Flowers (except in /?.) deep blue, marked externally Avith a hairy Hne. 

 — Near D. azureum. 



