330 Solanacce—Nicotiana. 
7. NICOTIANA. 
Tall stout usually viscid large-leaved herbs. Flowers race- 
mose or paniculate. Calyx campanulate, 5-lobed. Corolla 
funnel- or salver-shaped; limb plaited. Stamens included. 
Fruit a 2-celled many-seeded capsule, dehiscing at the top in 
2 or 4 valves. The species are natives of tropical America and 
Eastern Asia, but several are now found in a semi-wild state 
all over the world. The genus was named after Nicot, a Portu- 
guese, who it is believed introduced tobacco into France. 
These plants are seldom used for ornamental purposes, though 
some of them might be worthy of a place in large gardens on 
account of their ample foliage. 
N. ristica, N. Tabécwm, and N. macrophylla, syn. N. latis- 
sima, are the species of Tobacco commonly grown in Europe 
and elsewhere for their 
leaves. The first has yel- 
lowish green flowers and 
is of dwarfish habit, the 
others have pink flowers 
and large simple decur- 
rent leaves, auricled at 
the base in the latter. 
N. wigandioides and 
N. glaivca are ornamental 
# in foliage, but the flowers 
. are small and insignifi- 
cant. 
8. DATURA. 
Shrubs or coarse fetid 
herbs with ovate angular 
lobed leaves and large 
showy solitary flowers. 
Calyx 5-lobed, separating 
transversely, the lower 
part persistent with the 
fruit. Corolla funnel- or 
salver-shaped, with a 
plaited 5- to 10-toothed 
limb. Capsule 4-celled, 
4-valved, smooth or prickly; seeds large and flat. The few 
species are widely dispersed in warm and tropical regions, and 
Fig. 180. Datura ceratocaula. 
