976 



DELPHINIUM 



DELPHINIUM 



INDEX. 



A. Annuals: petals only 2, united: follicle 1. 



1. Ajacis, Linn. Fig. 1231. An erect annual, about 

 18 in. high, with a few spreading branches: Ivs. of st. 

 sessile, deeply cut into fine, linear segms. ; root-lvs. 

 similar, but short-petioled: fls. showy, blue or violet, 

 varying to white, more numerous than in D. Consolida, 

 in a spicate raceme; petals 2, united; calyx-spur about 

 equaling the rest of the fl.: follicle only 1, pubescent; 

 seeds with wrinkled, broken ridges. May-Aug. Eu. 

 R.H. 1893, p. 228. Same figure in S.H. 2:282. The 

 season of flowering is governed largely by the time of 

 sowing the seeds. If sown in the fall, as may be done 

 in warm climates, the plants will produce fls. by May 

 or June. But if the seeds be sown in spring no fls. 

 should be expected before July or Aug. 



2. Consolida, Linn. (Consolida arvensis, Opiz). An 

 erect, hairy annual, 1-1 ^ ft. high: Ivs. similar to D. 

 Ajacis: fls. few, loosely panicled, pedicels shorter than 

 the bracts, blue or violet or white; petals 2, united: fol- 

 licle 1, glabrous; seeds with broken, transverse ridges. 

 June-Aug. Eu. Baxter Brit. Bot. 4, t. 297. R.H. 

 1893, p. 228 (var. ornatum Candelabrum). G.Z. 15:81. 

 Var. imperialis, Hort. (D. imperialis fl. pi., Hort.). 

 Fls. double. From the English gardens. See above 

 species for sowing of seeds. 



AA. Perennials, pure species: petals 4' follicles 8-5 

 (Nos. 3-27). 

 B. Sepals red. 



3. nudica&le, Torr. & Gray. St. 1-1 > ft. high, gla- 

 brous, branched, few-lvd. : ivs. rather succulent, 1-3 in. 

 across, lobed to the middle or farther 3-7 times, the 

 secondary lobes rounded and often mucronate; petioles 

 3-5 in. long, dilated at the" base: fls. panicled; sepals 

 bright orange-red, obtuse, scarcely spreading, shorter 



than the stout spur; petals yel- 

 low, nearly as long as sepals: 

 follicles 3, spreading and re- 

 curved, soon becoming glabrous; 

 seeds thin-winged. Apr .-July. 

 Along (mountain streams, N. 

 Calif. B.M.5819. F.S. 19:1949. 

 R.H. 1893, p. 259. A good per- 

 ennial in the E. 



4. cardinale, Hook. St. erect, 

 2-3^ ft. high and much higher 

 under favorable conditions, 

 partly pubescent: Ivs. smooth, 

 fleshy, deeply 5-parted, the 

 parts cut into long, linear lobes: 

 raceme elongated, many-fld.; fls. 

 bright red, with petal-limbs yel- 

 low: follicles glabrous, usually 3; 



seeds smooth. July, Aug. S. Calif. B.M. 4887. Gt. 



6:328. F.S. 11:1105. R.B. 6:101. Gn. 19:234. 



BB. Sepals clear yellow or tipped with blue. 



5. Przewalskii, Huth (D. Prsewalskianum, Hort.). 

 Nearly glabrous, often branched at base, erect, varying 

 much in height: Ivs. 3-5 times deeply parted, parts 



1232. Single larkspur. 

 D. grandiflorum. 



divided into narrow, obtuse lobes: fls. clear yellow, or 

 sometimes tipped with blue; spur equaling the sepals: 

 follicles 3, densely hairy. July, Aug. Asia. Intro. 1892. 

 6. Zalil, Aitch. & Hemsl. (D. sulphureum, Hort. D. 

 hybridum var. sulphureum, Hort.). St. nearly simple, 

 erect, 1-2 ft. high, rather glabrous, or becoming so: 

 Ivs. of several narrow, linear lobes, dark green; petioles 

 not dilating at the base: fls. large, light yellow, in long 

 racemes: follicles 3, longitudinally furrowed and ribbed; 

 seeds with transverse, fibrous 

 plates. June, July. Persia. 

 Intro. 1892. B.M. 7049. Gn. 

 50:434; 54, p. 347; 71, p. 

 285. G. C. III. 20:247. 

 Seedlings from tubers and 

 plants die down as if dead; 

 but they make a second 

 growth after a short period 

 of rest. 



9 



1233. Double larkspur. 

 D. grandiflorum. 



BBB. Sepals blue or varying 



to white. 



c. Height 1^2 ft. or less. 

 D. Petioles dilating at the base. 



7. bicolor, Nutt. Erect, rather stout, J^-l ft. high, 

 from fascicled roots: Ivs. small, thick, deeply parted 

 and divisions cleft, except perhaps in the upper Ivs.; 

 segms. linear and obtuse: raceme rather few-fld., the 

 lower pedicels ascending 1-2 in. ; spur and sepals nearly 

 equal, ^in. long or more, blue; upper petals pale 

 yellow or white, blue- veined; lower petals blue: follicles 

 glabrous or becoming so. May-Aug. Dry woods, Colo., 

 west and north to Alaska. 



8. Brunonianum, Royle. MUSK LARKSPUR. Sts. 

 erect, ^-l/^ft. high: plant somewhat pubescent : upper 

 Ivs. 3-parted, lower ones reniform, 5-parted; segms. 

 deeply cut, musk-scented: fls. large, light blue with 

 purple margins, center black; spur very short; sepals 

 1 in. long, membranous and often clinging until the 

 fr. is mature: follicles 3 or 4, villose. June, July. China. 

 B.M. 5461. R.B. 1863:34. 



9. decdrum, Fisch. & Mey. St. slender and weak, 

 %-!% ft. high, smooth or nearly so: Ivs. few, bright 

 green; upper ones small, 3-5-parted into narrow lobes; 

 lower and radical ones somewhat reniform in out- 

 line and deeply 3-5-parted, lobes often differing widely: 

 fls. in a loose raceme, or somewhat panicled; sepals 

 blue, Kin. long, equaling the spurs; upper petals at 

 least tinged with yellow: follicles 3, thickish, glabrous. 

 Spring. Calif. Intro. 1881 B.R. 26:64. 



DD. Petioles hardly dilating at the base. 

 E. Upper petals never yellow. 



10. cashmerianum, Royle. Plant pubescent, not 

 very leafy: st. simple, erect, slender, 10-18 in. high: 

 root-lvs. orbicular, 2-3 in. diam., 5-7-lobed, coarsely, 

 acutely toothed and cut; petiole 5-8 in. long; sts.-lvs. 

 short-petioled, 3-5-lobed, cut like the radical ones, all 

 rather thick, and bright green: infl. corymbose, the 

 branches rather spreading; fls. 2 in. long, deep azure- 

 blue; spur broad, obtuse, inflated, decurved, little over 

 half as long as sepals; upper petals almost black, 2- 

 lobed, lateral ones greenish: follicles 3-5, hairy. July- 

 Sept. Himalayas. B.M. 6189. Gt. 32:1105. Gn. 18:568. 

 R.H. 1893, p. 259. Hardy in Mass., and choice. 



Var. Walkeri, Hook. St. very short, leafy, many- 

 fld. : upper Ivs. less lobed or almost entire, small, long- 

 petioled: fls. very large, light blue with yellow petals. 

 Suited to rockwork. B.M. 6830. 



EE. Upper petals yellow or striped with yellow. 



11. tricorne, Michx. St. succulent, about 1 ft. high: 

 Ivs. 3-5-parted, with 3-5-cleft linear lobes; petioles 

 smooth, hardly dilating at the base: fls. large, blue, 

 rarely whitish ; upper petals sometimes yellow, with blue 



