OF ARTS AND SCIENCES : MAY 13, 1873. 581 



fornia, is perhaps to be referred here, rather than to CE. humifusa, 

 having the larger flower and elongated capsule, but with a larger, erect 

 seed (I" long), very nearly smooth, and the calyx and ovary not villous. 



7. CE. SINUATA, L. Stems ascending or decumbent, simple or 

 branched, about 1° high or more ; more or less strigose-pubescent and 

 puberulent ; leaves oblong or lanceolate, 1-2' long, sinuately toothed or 

 often pinnatifid, the lower petioled ; calyx and ovary subvillous, the 

 slender tube J - \\' long ; petals G - 9" long; capsule 1 - \\' long ; seeds 

 oblong, subangled, strongly pitted. — From New Jersey to Florida, the 

 Indian Territory, Texas, and Mexico ; Peru. CE. laciniata, Hill, is the 

 older name, but less appropriate. CE. prostrata, Ruiz & Pav., is the 

 same. 



Yar. MINIMA, Nutt., is a slender, reduced form, 1-flowered, often 

 nearly glabrous. 



Var. hirsuta, Torr. & Gray. Densely hirsute, with appressed 

 and spreading hairs ; seeds less strongly pitted. 



Var. graxdiflora. Flowers larger, the petals 1 - \\' long ; stems 

 often decumbent. — Texas. Distinguished from CE.pinnatiJida by the 

 yellow flowers erect before opening, the free calyx-tips, and the more 

 oblong and angled seeds. 



* * Annual or perennial caulescent herbs ; flowers axillary, mostly 

 large, nodding in the bud, white becoming rose-color, diurnal ; cap- 

 sules mostly linear, subtetragonal, sessile ; seeds ascending in a sin- 

 gle row in each cell. — Anogra, Spach. 



8. CE. pixxatifida, Nutt. Annual or biennial ; stem decumbent at 

 base and diffusely branched, or subsimple and erect, 3 — 12' high ; canes- 

 cently puberulent or subhirsute ; leaves oblanceolate or linear-lanceo- 

 late, 1 - 3' long, mostly deeply sinuate-pinnatifid with linear lobes, the 

 lower spatulate and long-petioled, less deeply pinnatifid or entire ; ca- 

 lyx-tube rather slender, equalling or a little shorter than the petals, the 

 segments subvillous, tips not free, throat naked ; petals emarginate, 

 f -1^' long; capsules linear, 1 - H'long, 1 - lh" wide, submembranous, 

 more or less puberulent, erect or curved ; seeds oval, apiculate, not an- 

 gled, finely pitted. — East of the Rocky Mts., from Dakotah to the 

 Indian Territory and New Mexico ; Sonora. 



9. CE. trichocalyx, Nutt. Annual; stem mostly stout, h-l° 

 high, erect or decumbent at base, simple or branched, white and shin- 

 ing ; glabrous or canescently puberulent or subvillous ; leaves linear to 



