224 ONAGRACE^. (Euutlitra. 



Central and Soutlu'ra California : at Larken's station, east of San Diego {Palmer) ; Fort Mo- 

 have (Cooper) ; also by fFaltacc, and others. Flowers fragrant. 



4. Qj. trichocalyx, Nutt. A very simihir spccius in appearance, glabrous or 

 canesccnlly itulH'nileiiL (»r somewhat villous : root annual : stem mostly erect, often 

 stout, a span lii^'li : caly.\ very villous, the tips of the lobes not free in the biul : 

 petals large, usually with a deep ainus: ea[)sulo thickeni'd toward the base: seeds 

 ovate-oblong, somewhat eomj)rt;ssed. — Torr. & CJray, Fl. i. 4i)4. (E. ddtoidea, 

 Torr. in Fremont Kep. 315; AVatson, Bot. King Rep. 107. 



Cliiefly eastward of the Sierm Nevada from Northern California to Arizona and New Mexico ; 

 Fort Mohave (Coojicr) ; also in Corral Hollow and Tularo I'lain, Brewer. 



* * * Acaulesctnt or nturli/ so: Jionrrs large, axillary, ei'ect in bud, opening by day: 

 capsule ovate ur ovate-obloinj, mostly sessile: seeds large, in 2 rows in each cell. 



5. CE. caespitosa, iS'utt. Glabrous or usually more or less villous with spreail- 

 iug hairs : root ajiparently biennial : leaves oblong to narrowly oblanceolate, on 

 long })etiole.s, usually irregularly sinuate-toothed or repand-denticulate, often some- 

 what pinnatiliil : <;aly.x-tidje 2 to 7 ineht-s long, the tips of the lobes not free in the 

 bud: petals white or rose-color, In-oadly (>l)eordatc, | to 1| inches long: capsules 

 ovate-obloug, attenuate above, usually sessile, 1 to 1| inches long, strongly ribbed 

 on the sides and with a thick more or less tuberculate crest on each side of the 

 sutures: seeds Ih lines long, i)val-oblong, with a narmw groove along the ventral 

 side, minutely tuberculati; on the back. — Sims, liot. Mag. t. 1593. C/i'. VKintana & 

 CE. maryinata, IS'utt. in Torr. k Cray, Fl. i. 500; Hook. f. Eot. Mag. t. 5828. 



Near Carson City {Anderson, Stretch) ; Oregon {Nevius) ; and frequent eastward to the Upper 

 Missouri, Nebraska and New Mexico. 



G. CE. triloba, Nutt. Nearly glabrous: root annual or biennial: leaves nar- 

 rowly oblanceolate, often large, usually irregularly pinnatiiid with narrow lobes : 

 calyx-tube 2 to 4 inches Kuig, the tips of the lobes free in the bud : petals ye.llow, 

 broadly obovate, .^ to \\ inches long, somewhat 3 - 5-nerved : capsule sessile, ob- 

 long to obovate with moiti or less broadly winginl angles, 9 to 15 lines long, usually 

 somewhat beaked above, the sides ribbed and at length net-veined : seeds a line 

 long, angled and nunutely tuberculate. — Hook. Bot. Mag. t. 25GG. 



Sierra Valley {Mrs. Avies, Lemvwn) ; Truckee Valley ( IFatson) ; Oregon {A'evhis) ; and east- 

 ward to the Saskatchawan, Colorado and Texas. 



§ 2. Calyx-tube fi I i/onn above the ovary, somewhat persistent: stamens opposite to the 

 petals shorter ; anthers oval or oblong : stigma capitate : capsule sessile, ovate- 

 oblong to linear, someivhat membranaceous: seeds ascending, in 2 rows in each 

 cell : Jloivcrs yellow, erect in bud and the tips of the lobes not free: acaulescent. 

 — Tauaxia. 



7. CB. Nuttallii, Torr. & (iray. Canescently pubescent : root biennial or jJcnMi- 

 nial : leaves narrowly oblanceolate, 2 to G inches long, petioled, deeply sinuute-pin- 

 natihd ; the numerous very unequal segments usually rounded or obtuse : calyx- 

 tube 1 to 2h inches long : petals about half an inch (5 to 9 lines) long : capsules 

 rarely d(',velo])ed, narrow, attenuate upward, (i to 10 lines long, obtusely 4 -sided : 

 seeds oblong, t(irete, a Hue l<Mig, obscurely lined. — Fl. i. 5()G. C/i. tauacetifulia, 

 Torr. h (Jray, I'acif ll. l{e|i. ii. 121, t. 4; Watson, Hot. King Kxp. 110. 



At the eastern biuse of the Sierm Nevada, from Carson City {Anderson, Slrctc/i, &c.) to tin; 

 Columbia Kiver. 



(E. BREViFLOiiA, Torr. & Gray. A similar species, but nearly glabrous, flowers smaller and 

 shorter, and segments of the leaves acute or aciitish : seeds more numerous, half a lini; long. — 

 Oregon (Neoius) to W. Wyoming and Colorado ; may be i'ouud in the northern part of the State. 



8. OS. heterantha, Nutt. Nearly glabrous : root biennial or perennial : leaves 

 oblong-lunceolate, acute or acuminate, entire or sliglitly repand-denticulate, G inches 



