SOLANACE^. (nightshade FAMILY.) 321 



rather longer, spreading, biconvex, with three short lobes. Stamens 4, didyna- 

 mous, under the upper lip : anthers approximate, oblong, hairy ; the cells 

 nearly equal, slightly pointed at the base. Ovary with 2 ovules in each cell. 

 Capsule compressed, oblique, loculicidally 2-valved, 1-4-seeded. — Annual 

 herbs, with opposite lanceolate or linear leaves, and solitary axillary flowers. 



1 . M. Americanum, Michx. Stem naked below, leafy and commonly 

 branched above the middle ; leaves lanceolate, entire, short-petioled ; the upper 

 ones broader and sharply toothed at the base ; flowers greenish yellow. — 

 Dry woods along the mountains, Georgia, and northward. August. — Stem 

 6'- 12' high. Leaves 2' long. Flowers 4" -3" Ions:. 



Order 91. SOLANACE^. (Nightshade Family.) 



Herbs or shrubs, with colorless juice, alternate leaves, and regular 

 axillary or supra-axillary flowers. — Calyx 4 - 7-cleft, or 4 - 7-toothed, 

 persistent, often inflated in fruit. Corolla 5 - 10-lobed, plaited and 

 valvate, convolute, or imbricated in the bud. Stamens 4-7, inserted 

 on the tube of the corolla : anthers 2-cened, opening lengthwise or by 

 terminal pores. Style and stigma single. Fruit a 2-cened (rarely 3 - 

 5-celled) many-seeded capsule or berrjr. Placentae adnate to the par- 

 tition and projecting into the cells. Seeds campylotropous or amphi- 

 tropous. Embryo mostly slender and curved in fleshy albumen. — 

 Chiefly narcotic poisons. 



Synopsis. 



§ 1. Fruit a berry. 



* Corolla wheel-shaped or short bell-shaped. 



■t- Anthers comiiveut. Calyx unchanged in fruit. 



1. SOLANUM. Anthers opening by terminal pores. Berry juicy. 



2. CAPSICUM. Anthers opening lengthwise. Berry juiceless, or fleshy. 



■*- -t- Anthers separate, opening lengthwise. Fruiting calyx inflated. 



3. PHYSALIS. Berry juicy. Calyx entire at the base. 



4. NICANDRA. Berry dry. Calyx 10-toothed at the base. 



* * Corolla funnel-shaped. 



5. LYCIUM. Anthers opening lengthwise. Berry juicy. Shrubs. 



§ 2. Fruit a capsule. 



6. DATURA. Calyx prismatic or terete, circumscissile. Capsule spiny. 



7. PETUNIA. Calyx terete, persistent. Capsule smooth. 



1. SOLANUM, L. Nightshade. 



Calyx 5-toothed or o-cleft. Corolla wheel-shaped, 5-lobed, valvate, with the 

 margins turned inward. Stamens 5, inserted on the throat of the corolla, ex- 

 serted; the filaments very short : anthers opening by 2 terminal pores, con- 

 nivent. Stigma obtuse. Berry juicy, 2-celled, many-seeded. — Herbs or 

 shrubs, often armed with prickles. Leaves alternate or in pairs. Flowers 

 opposite the axils, or above them. 



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