^»othera. ONAGRACE/K. 223 



Cancscently pubornlent, slon.ler : leaves nearly entire : cnpsulo 



very slender, not iittenuate upward. I7 a<: AiTSSoinrs 



Viscully pubescent : leaves dcnticulnto : capsule attenuate frou, altssoides. 



the haso. ,0 ..,. ,^ 



Olabrous : stem white and shining: spike nearly erect : capsule ' " ""'^""" 



attenuate from the base. , 9. d,^ OAim>f:FL0RA. 



♦ ♦ * * Capsule pedicellate, linear or somewhat clavate, obtuse, not contorted : otherwise aa 



in the preceding. 

 Flowers in a nearly naked raceme : calyx-tubo funnelform. 

 Leaves all near the base, usually lyrato. 



Puberulent or nearly glabrous : calyx-tips not free : cai.sule an 



inch long or less. nn <-p 



Villous : calyx-tips free, stout : capsule 1 to 3 inches long. 21.' (K mSr" 



Leaves scattered, cordate or ovate : calyx-tube long-funnefform • «'^'='VIPE8. 



tips not free. ' 00 n-. 



Flowers with leafy bracts, ve^^ small : calyx-tube obconie : seeds ''^ ^^ ^^«^'«-'^^'^-- 



w.th mvobite margins : dwarf, slender. 23. (E. rrERo.sPF.KMA. 



§ 1. ^V,/y.r,«».A;,ro/o»;7..<?i.yo,^./^A.omry.• sfamens nearly equal; anthers linear 



or linear-oblong: stigma-lobes linear: capsule m7•^V,ceo«.s. — Eucenothera. 

 * Tnll, erect : flowers yellow, in a leafy spike, erect in the bud, opening at evening ■ 

 tips ofthecMlyx-lohesfree: capsule narrowly oblong, sessile, straight: seeds in 2 

 rows m each cell. — Lvening Puimuosb. 



1. CB. biennis Linn. Bieimial, stout an<l usually simple, 1 to 5 feet \xw\, 

 canescently puberulnnt and more or less hirsute : leaves lanceolate to oblonR-^o^ 

 rarely ovate-lanceolate, acute or acuminate, 2 to 6 inches long, rcpandly denticulate 

 mosty sessile : calyx-tube 1 to 2^ inches long : petals 6 to' 9 lines Lig : camui; 

 about an inch long or less : seeds obloug, with somewhat margined miglesr 



Var. grandlflora Lindl. Petals as long as the caly.x-tube : capsule more or 

 less puhes.ent._- JJot. Heg. t. 1C.04. (U. grandiflora, Ait. ; P,.t. Mag. t. 20G8 



Var. hirsutlSSima (Iray. Flowers as in the last, but the ovary especially more 

 hirsute. — PI. l^endl. 43. (E. Uooheri, Torr. & Gray, PI. i. 493. 



From Ore-on to the Atlantic an<l from British America to Mexico ; forms of it are also widelv 

 naturnlm.d in Kurope (where it has long been cnltivate.l), as well as in S Africa Indir and 

 Australia. 1 he var. hirsn>U.Unn is the more eomn.on form in California, ranging to New Mexico 

 the others being more prevalent east of the Sierra Ncva.la. ^ iuexico, 



* * Usually low: stems white : flowers large, white becoming pinkish, axillar,,, nod- 

 ding m bud, opening by day: capsules long and narrow, sessile, often curved: seeds 

 m a single row m each cell, ascending. 



2. CE^ albicauUs, Nutt. Glabrous or puberulent : stems herbaceous, from a 

 perennial subterranean running rootstock, erect, ^ to 4 feet high, simple or branched : 

 leaves linear to oblong-lanceolate, sessile or attenuate at base or abruptly petioled 

 entire or repand-denticulato or sinuate-pin natifid toward the base, I to 3 inches 

 long : tips of the calyx- obes free in the bu.l ; the tube an inch long or less : petals 

 abou as long as the tube, entire or emarginate : caps.de an inch or two loni, not 

 broader at base: seeds narrowly oblong, terete, a line jnug.-Pngolm. in Am. Jour 

 Sci. 2 ser. xxxiv. 334. OiJ. pallida, Dougl. ; Liudl. P.nt. K'eg. t. 1 142. 



A variable snecies, common eastward of the Sierra Nevada, ranging fn.n. Washington Territory 

 to the Snskatcfiewan and southward to the Mexican boundary. ^ lounoiy 



3 CE. Californica, Watson. Hoary-pubescent and more or less villous: stems 

 herbaceous from a running rootstf.ck, decumbent, about a span long : leaves narrowly 

 oblanceolate, acuminate, mostly petiole.!, sinuately toothe.l or irregularly piniiatifid, 

 J to 4 inches l.)ng : fL.wers as in the last but often larger; the ovary aii.l calyx vil- 

 lous and the ^.etals lobed with a roundel sinus : capsule 2 inches long, not thick- 

 ened at base: .seeds oblong, turgid, someudiat obtusely angled. ~ a\ albicauUs, var 

 taliformca, V\ atson, Proc. Am. Acad. viii. 582. 



