Solanacee—Datura. Zor 
one, D. Stramonium (Thorn-Apple), is occasionally found in 
waste places in this country as a waif of cultivation. This has 
large white flowers, but there is a variety with violet flowers 
called Tétula. The generic name is an alteration of the 
Arabie Tatorah. 
1. D. ceratocatla (fig. 180) is a spreading or decumbent 
annual with thick fistular stems and odoriferous white flowers 
tinged with violet. A native of South America. 
D. Metel is an erect slightly-pubescent species with fragrant 
white flowers and large spiny capsules. D. fastudsa has 
purplish stems and very long tubular funnel-shaped flowers, 
yellowish within, and tinged with violet externally. D. humilis 
has double flowers, and is considered to be a dwarf variety of 
the last. D. metelordes, similar to Metel, with large longer- 
tubed flowers of a bluish violet. 
9. PETUNIA. 
A small genus of South American herbaceous often viscid 
perennials. Leaves simple. Flowers solitary and axillary. 
Calyx 5-lobed ; lobes spoon-shaped. Corolla funnel- or salver- 
shaped; limb 5-lobed, spread. Stamens 5, included, unequal. 
Fruit capsular, 2-celled, many-seeded. Petwn is the Brazilian 
for Tobacco. 
Fig. 181, Petunia violacea, (3 nat. size.) Fig. 182, Petunia nyctaginiflora. 
(} nat. size.) 
1. P. violicea (fig. 181).—This is one of the parents of the 
numerous hybrid varieties now in cultivation. A weak 
