DICOTYLEDONOUS PLANTS 201 
corolla-tube. Ovary 2-celled or imperfectly 4-celled ; style 
filiform ; stigma 2-lobed. Fruit a spiny, 4-valved, many-seeded 
capsule.* 
1. D. Stramonium, L. Jimson-wEED. Annual; stem smooth, 
green, stout, forking above, 1-4 ft. high. Leaves ovate to oblong- 
ovate, acute at the apex, narrowed at the base, sinuate-toothed, 
petioled. Calyx 5-angled. Corolla white, about 4 in. long. Capsule 
ovoid, erect, 2 in. long. A common weed ; poisonous. Introduced 
from Asia.* 
2. D. Tatula, L. Taller, with a purple stem. Flowers rather 
later than No. 1; corolla violet-tinged. 
V. PETUNIA, Juss. 
Herbs; leaves alternate and entire. Divisions of the calyx 
oblong-spatulate. Corolla showy, spreading funnel-shaped, 
not perfectly regular. Stamens 5, somewhat unequal in 
length, inserted in the middle of the corolla-tube and not 
projecting beyond it. Capsule 2-celled, containing many very 
small seeds. 
1. P. violacea, Lindl. Common Petunia. Stems rather weak 
and reclining. Leaves covered with clammy down. Corolla vary- 
ing from pale pink to bright purplish-red, often variegated, with 
a broad, inflated tube, which is hardly twice as long as the calyx. 
Cultivated annual from South America. 
2, P. nyctaginiflora, Juss. Wuitre Petunia. Leaves somewhat 
petioled. Tube of corolla long and slender. Flowers white. Culti- 
vated from South America. This and the preceding species much 
mixed by hybridization. 
89. SCROPHULARIACEZ. Ficwort FAmIty. 
Mostly herbs, with irregular flowers. Calyx free from the 
ovary and persistent. Corolla 2-lipped or otherwise more or 
less irregular. Stamens usually 2 long and 2 short, or only 
2 in all, inserted on the corolla-tube, often 1 or 3 of them 
imperfectly developed. Pistil consisting of a 2-celled and 
usually many-ovuled ovary, with a single style and an entire 
or 2-lobed stigma. 
