Delphinium. EANUNCULACE.E. 49 



usually puberulent, or below hirsute-pubesceut : leaves not large, only an inch or two iu 



diameter, well dissected into linear or little broader and obtuse or niucronulate lobes or 



divisions. 

 D. hesperium, Gray, 1. c. Commonly 2 feet high : raceme virgate, a span to at length even 

 a foot long, usually niauy-fiowered : pedicels erect in fruit, lowest not over an inch and upper 

 only 2 to 4 lines long : flowers violet-blue or paler, or often white, sometimes reddish purple : 

 sepals 4 or 5 lines long, oval, about equalled by the petals and by the spur : follicles short- 

 oblong, puberulent, half inch or less long. — D. ]\Jemiesii, var. ochroleiicam, &c., Torr. & 

 Gray, Fl. i. 31. D. azureum, Torr. & Gray, Fl. i. 660, as to Calif, and Oregon pi. D. azu- 

 reum & D. simplex, Hook. & Arn. Bot. Beech. 317 ; Benth. I'l. Hartw. 295, 296. D. simpler, 

 Brew. & Wats. Bot. Calif, i. 10. — Dry ground, plains of W. Oregon to Monterey and Mari- 

 posa Co., California; common. Var.* HAnseni, Greene (Fl. Francis. 304), from Amador 

 Co., Calif., is described as a more slender form with smaller pale flowers. 

 D. variegatum, Torr. & Gray. A foot or two high, usually hirsute-pubescent below, 

 bearing a raceme of several (rarely over 10) large flowers : sepals ample, deep violet-blue 

 varying to purple, rose-color or white, roundish-obovate or oval or iu age oval-oblong, two 

 thirds to three fourths inch long, fully as long as the spur : upper or all the petals white : 

 follicles half inch long, turgid-oval, puberulent. — Fl. i. 32 ; Brew. & Wats. 1. c. D. grandi- 

 Jlorum, var. variegatum, Hook. & Arn. 1. c. D. decorum, Benth. PI. Hartw. 295, not Fisch. 

 & Meyer.i — W. California, along streams, &c., common from Monterey northward to 

 Butte Co. ; early coll. by Douglas and by T. Coulter. The most showy species. Var.* 

 apiculAtcm, Greene (Fl. Francis. 304, D. apiculatum, Greene, Pittonia, i. 285), of the 

 interior of California near the San Joaquin, is from character a form having smaller more 

 numerous flowers and somewhat broader leaf-segments. 

 •i— -i— Roots grumous or fasciculate-tuberous, i. e. thickening into globular or oblong or often 



palmate tubercles (of annual or biennial duration), bearing only fibrous rootlets: flowers 



mostly blue or violet. 

 ++ Raceme spiciform and virgate, mostly many-flowered : pedicels shorter than the spur, 



erect or even appressed both in flower and fruit : stem strict, mostly several-leaved, simple, 



or the larger plants bearing one or more smaller lateral racemes. 

 D. simplex, Dougl. Tall, about a yard high, pubescent throughout with short and soft 

 spreading almost velvety down : leaves aU dissected into linear divisions and lobes ; calyx 

 pubescent externally : root and fruit not seen (referred here from likeness to the following). 

 — Dougl. in Hook. Fl. Bor.-Am. i. 25 ; Gray, 1. c. ; hardly of any others.^ — W. Idaho; sub- 

 alpine range west of the Rocky Mountains, near the Columbia, Douglas, Clearwater River, 

 Spalding ; also probably Union Co., E. Oregon, Cusick,w\t\\ glabrate leaves. 



D. distichum, Geyer. A foot or two and rarely a yard high, glaucescent, glabrous or 

 inflorescence puberulent, rather rigid : leaves thickish ; radical and lowest cauline of rounded 

 outline and with cuneate or sometimes narrow divisions and lobes ; upper short-petioled, 

 erect, and with approximate or little spreading linear divisions and lobes : flowers usually 

 approximate in the very spiciform raceme, then conspicuously distichous: sepals at first 

 canescent-puberulent externally, a third to nearly half inch long, or in one form smaller and 

 much less colored : foUicles seldom over half inch long, erect. — Geyer in Hook. Lond. Jour. 

 Bot. vi. 68 ; Gray, 1. c. D. simplex, var. distichiflorum. Hook. 1. c. 67. D. simplex, partly, 

 of various authors. D. azureum, Torr. Bot. Wilkes Exped. 217. — Low prairies, &c., E. 

 Oregon and Washington to Montana ? Geyer, and various later collectors, apparently wide- 

 spread. 



■H- -H- Raceme loose, few-several-flowered or sometimes rather many-flowered : pedicels in 

 flower and fruit ascending or spreading, at least the lower ones longer than the spurs : 

 stem erect or ascending, only a foot or two high, naked and usually attenuate at base, 

 where it at length readily separates directly from the grumose root-mass. 

 = Follicles at maturity half to three fourtiis inch long, oblong-cylindraceous, and almost 

 always widely recurving : pedicels mo.stly long and lax. 



1 D. ornatum, Greene (Fl. Francis. 304, D. Blockmanas, Greene, Erythea, i. 247) was regarded by 

 Dr. Gray as a form of D. variegatum, 



2 Add syn. D. azureum, var. simplex, Hutli, 1. c. 



4 



