4Ö2 207. SOLAN ACEAE 



Fruit a capsule with many small seeds. Ovules many in each ovary-cell. 

 Stamens inserted in the lower part of the corolla-tube. Flowers in 

 cymose, raceme- or panicle-like inflorescences. Herbs or undershrubs. — 

 Species 5. Cultivated and sometimes naturalized in various regions. 

 They yield tobacco (especially from A^. tahacum L. and rustica L.), 

 lamp-oil, vermin-poison, and medicaments, and serve as ornamental 

 plants. [Subtribe nicotianinae.] Nicotiana L. 



6. Fruit a capsule opening by a lid. Calyx enlarged in the fruit. Corolla 



widely funnel-shaped, 5-lobed, imbricate in bud, white or yellow with 

 red or violet veins. Herbs. Leaves alternate, undivided or lobed. 

 Flowers solitary, axillary. — Species 8. North and Central Africa. 

 They are poisonous and yield oil and medicaments. " Henbane." 



; [Subtribe hyoscyaminae.] Hyoscyamus L. 



Fruit a berry, indehiscent or at length bursting irregularly. Corolla 

 tubular, campanulate, or rotate 7 



7. Anthers attached at the middle of the back. Corolla campanulate, 5- 



cleft. Root thick. Stem very short. Leaves radical, undivided. 

 Flowers solitary, axillary. — Species 2. North Africa. Poisonous and 

 used in medicine and magic. " Mandrake." [Subtribe man- 



dragorinae.] Mandragora Juss. 



Anthers attached at the base or the lower part of the back. Stem well 

 developed. Leaves alternate 8 



8. Corolla tubular or campanulate ; limb narrow in proportion to the tube. 



Calyx not or slightly enlarged in the fruit. Flowers solitary or in clusters. 



Leaves undivided. [Subtribe lyciinae.] 9 



Corolla rotate or campanulate ; limb broad. [Subtribe solanin ae.] . 12 



9. Corolla irregular, with an oblique limb, violet, folded in the bud. Stamens 



inserted at the base of the corolla-tube ; filaments short, as long as or 

 shorter than the anthers. Fruit almost dry. Herbs. Leaves lobed. 

 Flowers in pairs in the leaf-axils. — Species i. North-west Africa 



(Algeria). Used medicinally Triguera Cav. 



Corolla regular. Fruit succulent 10 



10. Corolla-tube narrow ; lobes imbricate in bud. Stamens inserted at or 



below the middle of the corolla-tube. Shrubs or trees. — Species 25. 

 Some of them are poisonous ; several species are used as hedge- 

 plants or in medicine Lycium L. 



Corolla-tube wide. Fruit globose 11 



11. Calyx 5-lobed. Corolla brownish-green, urceolate, valvate in bud. 



Stamens inserted above the middle of the corolla-tube. Shrubs. 

 Flowers in clusters. — Species i. Mountains of Central Africa. (Plate 



135.) Discopodium Höchst. 



Calyx 5-cleft. Corolla brownish-violet or dull-red, campanulate, imbricate 

 in bud. Stamens inserted at the base of the corolla-tube ; filaments 

 long. Herbs. Flowers solitary. — Species i {A. Belladonna L., 

 dwale). North-west Africa (Algeria). Poisonous and yielding oil and 

 medicaments Atropa L. 



