544 SOLANACE^. Datura. 



§ 1. Calyx-tuhe prismatic, actitehj 5 -angled : border of the corolla with 5 acute teeth: 

 capmle dry and of firm texture, 4:-valved from the top: seeds with a thick and 

 rough dark-colored coat : root annual. 



* Capsule erect as ivell as the flower. 



1. D. Stramonium, Linn. (Common Stramonium.) Smooth, green, 2 or 3 feet 

 liigh : leaves sinuately and laciniately angled and toothed : corolla white, abont 

 3 inches long : capsule tliickly beset with short and stout prickles, the lower ones 

 commonly shorter than the upper. 



Waste grounds, especially near towns, sj^ariiigly naturalized, probably originally from Asia. 



2. D. Tatula, Linn. Like the preceding, except that the stem is reddish- 

 purple, tlie corolla pale violet, and the prickles on the fruit about equal. 



Not yet recorded from California, but probably introduced in some places, from Tronieal 

 America. ^ 



3. D. quercifolia, HBK. Green, and the young herbage commonly a little 

 pubescent : leaves sparingly but deeply sinuate-pinnatifid : corolla nearly as in the 

 loregomg : capsule armed with unequal and flattened prickles, some of them lar^e 

 and strong, even an inch long. ° 



Along the Kio Colorado, especially in Arizona ; perhaps indigenous, as it is a Mexican species. 



■:■• % Capside nodding on a recurved pjeduncle. 



4. D. discolor, Bernh. Eather low, pubescent : leaves laciniately or sinuately 

 tootheel : coiolla 2 or 3 inches long, white with a purple tinge : capsule globose, 

 pubescent, armed with stout large prickles. — Gray, Proc. Am. Acad. v. 165 B 

 Thomasii, Torr. in Pacif E. Pep. v. 3G2, & Bot. Mex. Bound. 155. 



Along the Rio Colorado, at Fort Yuma, &c. ; thence into Mexico, from which it is likely to 

 liave been introduced : yet it may be indigenous. 



§2. Ccdyx tubular and nearly cylindrical: capsule nodding on the recurved short 

 peduncle, globose, succident, bursting from the apex sometvhat irregularly 

 at maturity: seeds flatter, with a softer and pale smoothish coat. 



5. D. meteloides, DC. Perennial, pale, being coated with a very minute and 

 soft wliitish pubescence, from one to 4 feet high : leaves mostly only repand or 

 entire : calyx 3 and corolla 7 or 8 inches longs the latter white or suffused with 

 violet, the widely expanded border with 5 (not 10) slender-subulate conspicuous 

 teeth: capsule 2 inches in diameter, thickly beset with short and weak equal 

 prickles : seeds bordered by a narrow and uniform cord-like margin. — Dun. in DC. 

 Prodr. xiii. 544 (with erroneous descr.); Gray in Bot. Mex. Bound. 154. jD. Metel, 

 var. quinqnecuspida, Torr. in Pacif. E. Eep. vii. 18. D. Wrightii of the gardens,' 

 & Eegel, Gartenfl. viii. t. 260. 



Southern part of the State, extending northward as far as to Santa Barbara on the sea-shore, 

 and eastward to Texas, and in adjacent parts of Mexico. Kow common and very ornamental in 

 cultivation. 



9. NICOTIANA, Tourn. Tobacco. 

 Calyx campanulate or oblong, 5-toothed or moderately lobed, persistent, closely 

 investing the capsule. Corolla various, but commonly funnelform or salverform ; 

 the limb plaited and the plaits more or less convolute in the bud. Stamens mostly 

 included : antliers short, opening lengthwise. Style long : stigma capitate or de- 

 pressed, somewhat 2-lobed. Capsule smooth, with 2 (rarely more) cells, and very 

 numerous seeds on broad placentae borne in the axis, 2-valved from the top, and 

 the valves themselves soon 2-cleft, thus becoming as it were 4-valved. Seeds very 

 numerous and small, oval or roundish, somewhat pitted. Embryo straightish. — 



