140 



SOLANACEAE. 



3. Datura Metel L,. 



[Voi,. III. 



Entire-leaved 

 Thorn-Apple. (Fig. 3224.) 



Datura Metel L. Sp. PI. 179. 1753. 



Annual, densely and finely glandular-pu- 

 bescent; stem stout, much branched, 4-8 

 high. Leaves broadly ovate, acute at the 

 apex, inequilateral, rounded or subcordate at 

 the base, 4 / -io / long, entire or merely undu- 

 late; petioles i'-$ f long; flowers white, 6' -7' 

 high, the limb 3 / -4 / broad; calyx tubular, 

 about one-half as long as the corolla; capsule 

 globose or ovoid-globose, obtuse, prickly and 

 pubescent, i'-i^' in diameter. 



In waste places, escaped from gardens, Rhode 

 Island to Florida. Native of tropical America. 

 July-Sept. 



n. NICOTIANA L,. Sp. PI. 180. 1753. 



Annual or perennial viscid-pubescent acrid narcotic herbs or shrubs, with large alternate 

 entire or slightly undulate leaves, and rather large white yellow greenish or purplish flowers, 

 in terminal, often bracted, racemes or panicles. Calyx tubular-campanulate or ovoid, 5-cleft. 

 Corolla funnelform, salverform, or nearly tubular, the tube usually longer than the limb, 

 5-lobed, the lobes spreading. Stamens 5, inserted on the tube of the corolla; filaments fili- 

 form; anthers ovate or oblong, their sacs longitudinally dehiscent. Ovary 2 -celled (rarely 4- 

 celled); style slender; stigma capitate. Capsule 2-valved, or sometimes 4-valved at the sum- 

 mit. Seeds very numerous, small. [Named for John Nicot, French ambassador to Portugal, 

 who sent some species to Catherine de Medici, about 1560.] 



About 50 species, mostly natives of America. 

 the southern and western United States. 



Besides the following, some 10 others occur in 



Corolla 1' long, the tube cylindric; calyx-lobes triangular. 

 Corolla 4'-6' long, the tube very slender; calyx-lobes linear. 



i. Nicotiana rustica L,. Wild 

 Tobacco. (Fig. 3225.) 



Nicotiana rustica L. Sp. PI. 180. 1753. 



Annual; stem rather slender, 2-4 high. 

 Leaves broadly ovate, thin, entire, slen- 

 der-petioled, 2 / -8 / long, i/-6' wide; peti- 

 oles yz'sYz' long; flowers greenish-yel- 

 low, about 1/ long, panicled; pedicels 

 3 // -6 // long, rather stout; calyx lobes 

 broadly triangular, acute, shorter than 

 the tube; corolla-tube cylindric, some- 

 what enlarged above, the lobes short, ob- 

 tuse, slightly spreading; capsule globose, 

 glabrous, about 5" in diameter, 2-valved, 

 longer than the calyx. 



In fields and waste places, escaped from 

 gardens, Ontario to Minnesota, south to south- 

 ern New York and Florida. Cultivated by 

 the Indians. Leaves greenish when dry. 

 June-Sept. 



1. N. rustica. 



2. N. longiflora. 



