ONAGRACE^.. (eVENING-PRIMKOSK FAMILY.) ID 1 



lar ; csipsule 1 - H' long ; soeHs strom^/i/ piitf,!. — \. J. to Khi., west to E. Kan. 

 and Tex. Very variable. 



* * Caulescent perennial ; flowers axillary, noddinrj in the httrl, white turninq 



rose-rolor ; capsules sessile, linear ; seeds in a sim/le row. 



6. CE. albicaillis, Nutt. Stems erect (^-4° high), simple or Lrancho.!, 

 white and often shreddy, f^labrons or pnhernlent; leaves linear to ohloiif^ lan- 

 ceolate (1 -3' long), entire or repand-dentieulate, or sinnate-pinnatifid towanl 

 the base; calyx-tips free, throat naked; pods i-2' long, often curvr-d or 

 twisted ; seeds lance-linear, smooth. — W. Minn, to N. Mex., and westward. 



* * * Caulescent ; Jlowers diurnal, i/ellow and erect in the bud {except in n. 11); 



capsules ohovate or clavate, quadrangular, the mlr,'^ rihhrd and the amjlcs 

 more or less strongli/ winyed {except in n. 7). 



7. CE. linifolia, Xutt. Annual or biennial, erect, very slender, simple 

 or diffuse (G-1;V high), glabrous, the branchlets and capsules puberulont; 

 radical leaves oblanceolate, cauline linear-Jihform ^-I'long; spikes loosely 

 flowered ; corolla 2 - 3" long ; stigmas short ; capsules obovate to oblong-cdavate, 

 2 -3" long, not u-in(/ed, nearly sessile. — 111. to E. Kan., La., and Tex. 



8. (E. pumila, L. Biennial, puberulent, 1-2° liigh ; leaves mostly gla- 

 brous, entire, obtuse, the radical spatulate, the cauline narrowlij ohlanrenUttc : 

 Jfowers loosely spiked; corolla 4-12''' long; capsule glabrous, oh\ong-<:\n\ate, 

 3 - 6'' long, sessile or on a short pedicel, slightly icinged. (Incl. CE. chrysantha, 

 Michx.) — Dry fields, N. Scotia to N. J., west to Minn, and Kan. June. 



9. CE. fruticosa, L. (Sundrops.) Biennial or perennial, erect, often 

 tall and stout (1-3° high), villous-pubescent or puberulent or nearly glabrous ; 

 leaves oblong- to linear-lanceolate, mostly denticulate ; raceme corymbed or loose : 

 petals 9-12" long ; capsule subscssile or with a pedicel shorter than itself, promi- 

 nently ribbed and strongly ivmged. — Common and very variable. 



Var. linearis, Watson. Leaves linear to linear-lanceolate ; capsule usually 

 shorter than the pedicel, rather less Ijroadly winged. ((E. linearis of Man., in 

 part. (E. riparia, Niilt.) — Conn, to Fla., west to Mo. and La. 



Var. humifusa, Allen, Low, decumbent, somewhat woody, diffusely 

 branched, puberulent; branches slender, flexuous; leaves narrow; flowers 

 few, small; capsules pubescent, about equalling the pedicel. (CK. linearis of 

 Man., in ]. art.) — Suffolk Co., L. Island. 



10. CE. glauca, Michx. Perennial, erect (2-3° high), ///a />ro»s and glau- 

 cous ; leaves ovate to o/v</f-yWo»^ (2-4' long), rej)and-denticulate ; ^//oj/yrs in 

 short leafy corymbs; petals 9-15" long ; capsule glabrous, ovoid-oblong, rrry 

 broadly winged, usually abruptly contracted into a pedicel e(jualling or shorter 

 than itself. — Mountains of Va. to Ala., west to Ky. and E. Kan. 



11. CE3. speclbsa, Nutt. Perennial, erect or subdecumbent, finely jju- 

 bescent ; leaves oblong-lanceolate to linear, repand-denticulate, or more or less 

 deeply sinuate-pinnatifid , Jlowers large, white or rose ; capsule clavate-ol)ovate, 

 strongly 8-ribbed, rigid, acute, stoutly pedicelled. — Mo. to Kan. and Tex. 



* * * * Capsule oblon<i to ovate or orbicular, broadly winged, rigid and sessile. 



■♦- Acaulescent or nearly so; /lowers white or rose-coior. 



12. (E. triloba, Nutt. Biennial or perennial, nearly glabrous; leaves 

 2-10' long, somewhat ciliate, long-petioled, runcinate-])innatitid or oblanceo 



