46 RAISUNCULACE^. Delphinium. 



* * Seeds with a cellular more or less loose and rngiilose coat : stem scapiform, with only 

 a cluster of radical and thickish or succuleut leaves, from thickish branching roots, merely 



puberulcut or glabrate, blue-flowered. 

 D scaposum, Gkeene. Leaves of rouuded or reniform outline and mostly oblong or sub 

 cuneate divisio'ns and lobes : scape a foot or two high ; raceme scveral-mauy-flowered : sepals 

 oblong, fully half inch long and shorter than the more or less curved spur : follicles oval, 

 erect" immature seeds with rugose and rugulose arilliform coat. — Bot. Gaz. vi. 156.1 — 

 Dry region of S. W. Utah, Palmer, and Arizona, Newberry, Palmer, Greene, Pringle, Rusby, 

 Lemmon.^ In Arizona is found iu company with U. azureum. 

 D.* uliginosum, Clkran. Leaves so far as known all cuueate and 3-cleft, with lobes entire 

 or l-.3-touthi<l : scape commonly branching; racemes few(6-18)-flowcrcd : .sev,:ils oval, a 

 third to hiilf inch long, about equalling the straight sjmr : follicles turgid-oblong, erect, 

 nearly half inch long; seeds with coat loose only at the angles, minutely rugulosc nud 

 muriculate.3 — BuU. Calif. Acad. Sci. i. 15 1.'* — Lake Co., California, "in swampy ground, 

 almost in the water," July, 1884, Mrs. Curran. 

 ^ ^ ^ Seeds with a loose cellular coat, which becomes transversely rngose-squamellate : 



root branching or fasciculate and elongated, thickish, but not tuberous : stem leafy, or 



when depauperate rarely subscapose : flowers from blue to white. 

 D. aziireum Michx. Stem a foot or two high, mostly strict and simple, puberulent: 

 'loa\ es .3-5-parte(l and divisions mostly again 3-5-parted or cleft usually into linear lobes : 

 raceme sj)iciform, usually many-flowered : flowers azure-blue or paler and often white, 

 sometimes greenish white: sepals often with a brownish spot: foUicles oblong, erect. — Fl. 

 i. 314; Deless. Ic. Sel. i. t. 60; Torr. & Gray, Fl. i. 32, probably not LlndL Bot. Reg. t. 

 1999, from "California." ?£>. Caroliniannm, Walt. Cut. 155. D. vire.icens, Nutt. Gen. ii. 

 14; Torr. & Gray, 1. c.^ — Sandy or stony soil, N. Carolina and Illinois to Texas and 

 Arizona, north to Saskatchewan and Wyoming; fl. early summer. (Adj. Mex.) 



Var.' vimineum, Gray. Broader-leaved, looser-flowered : stem 2 to 4 feet high, 

 sometiiiies branched : flowers violet to whitish. — Bot. Gaz. xii. 52. D. vimineum, Don in 

 Sweer, Brit. Fl. Card. ser. 2, t. 374; Hook. Bot. Mag. t. 3593 ; Torr. & Gray, 1. c. D. azu- 

 reum, Lindl. Bot. Reg. t. 1999, as to f. 2, possibly of the rest. D. virescens. Gray, PI. 

 Lindh. ii. 142. — Texas, Berlandier, Drummond, Lindheimer, Wright, the last D. simplex. 

 Gray, PI. Wright, ii. 8. 

 ^ ^ ^ ^ Seeds with a loose cellular coat, either arilliform or when dry merely scarious- 



winged or margined at the angles, not at all squamelliferous : flowers blue or violet-purple, 



often partly or wholly varying to white, at least the petals. All except the first western 



species. 

 4- Roots fasciculate (or rarely simple) at base of stem, more or less elongated and thickish 



but not tuberiform, or approaching it only in the last species. 

 ++ Stem strict, tall or robust, many-leaved : racemes many-flowered, simple or paniculate . 



pedicels seldom longer than flower or fruit, ascending or erect : follicles hardly if at all 



diverging, not over half inch long and mostly short-oblong. 

 D. exaltatum, Ait. Stem 3 to 7 feet high : leaves nearly glabrous, 3-5-parted or almost 

 so ; the divergent divisions cuneate or cuueate-lanceolate, 3-cleft or lateral ones 2-cleft into 

 lanceolate lobes: raceme elongated, virgate, at base commonly panicled : flowers blue 



1 Add syn. D. decorum, var. scaposum, Huth, Delph.-Art. N. A. 9. 



2 Also reported from S. Colorado, by Miss Eastwood, Zee, ii. 227. 



3 De-icription moditied in the light of excellent specimens collected near the type locality by Jilr. 

 J. W. Blankinship. 



4 Add syn. D. decorum, var. uliginosum, Huth, 1. c. 



6 Add syn. D. Penhardi, Huth, Helio.s, x. 27, Delph.-Art. N. A. 10, & Bull, Herb. Boiss. i. 335, 

 1. 16, f. 2 (a form with white flowers and ascending somewhat curved spurs); also D. camporum, 

 Greene, Erj'thea, ii. 183 (a very similar form with spurs erect). As striking as these fomis may hv, 

 they do not ap])ear (in a considerable series of specimens) to be distinguished from D. azureum by any 

 constant cliaracter. The flowers vary through all shades from blue to white, and the position of the 

 spnr both in the pale ])lne and white flowered forms varies from horizontal to erect through every 

 degree of obliquity. D. Geyeri, Greene, 1. c 189, is apparently a form of the same species. 



