576 



CLVII. SOLANE^. 



Herbaceous or woody PLANTS with watery juice. LEAVES alternate, the upper 

 usually geminate, simple, exstipulate. FLOWERS $ % often extra-axillary, with 

 ebracteate pedicels. CALYX monosepalous, with 5 (rarely 6-4) segments, persistent. 

 COROLLA hypogynous, mouopetalous, more or less regular, rotate, carapanulate, 

 infundibuliforin or hypocrateriform ; limb with 5, rarely 4-6 segments ; aestivation 

 folded, contorted, induplicate or valvate. STAMENS inserted on the corolla-tube, 

 alternate with its segments ; anthers introrse, sometimes connivent, or even cohering 

 at the top ; cells opposite, parallel, dehiscence longitudinal or by an apical pore 

 (Nightshade). CARPELS 2, one antero-posterior, cohering into a 2-celled ovary; 

 placentas thick, attached on the middle of the septum by a broad or linear surface, 

 sometimes bipartite, the lobes separated by a false septum, which subdivides each 

 cell, except at the top ; style terminal, simple ; stigma undivided or lobed ; ovules 

 very numerous, campy lotropous. FRUIT a septicidal (Tobacco), rarely loculicidal and 

 septifragal (Datura) capsule, or a pyxidium (Henbane), or a pulpy (Nightshade) or dry 

 (Pimento) berry. SEEDS numerous, compressed, hilurn ventral ; albumen fleshy, 

 copious. EMBRYO curved or annular ; cotyledons semi-cylindric ; radicle next the 

 hilum, or vague. 



TRIBE I. NICOTIANEJE. 



Capsule 2-celled, septicidally 2-valved. 



PRINCIPAL GENERA. 

 * Fabiaua. * Nierembergia. * Petunia. 



Nicotiana. 



Tobacco. 



(Nicotiana Tabacum.) 

 Flowers. 



Tobacco. 



Seed, entire and cut longitudinally 

 (mag.). 



