SOLANACEvE. (NIGHTSHADE FAMILY.) 321 



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

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

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

 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' - 1 2' high. Leaves 2' long. Flowers 4" - 5" long. 



ORDER 91. SOLANACEJE. (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-celled, opening lengthwise or by 

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

 5-celled) many-seeded capsule or berry. Placentas 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. 

 +- Anthers connivent. Calyx unchanged hi fruit. 



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



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



i- -i- Anthers separate, opening lengthwise. Fruiting calyx inflated. 



3. PHYSALI8. 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. 



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

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



1. SOLANUM, L. NIGHTSHADE. 



Calvx 5-toothed or 5-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 wJtb nrickles. Leaves alternate or in pairs. Flowers 

 opposite the axils, or above tnem. 



21 



