xci. solanacEjE (wkight). 207 



Order XCI. SOLANACE^. (By C. H. Wright.) 



Flowers visually hermaphrodite, regular or slightly irregular. Calyx 

 4-5- (rarely G-7-) toothed or lobed ; lobes imbricate orvalvate. Corolla 

 campanulate, rotate, f unuel-shaped or tubular, sometimes plicate ; lobes 

 4-5 (rarely 6-7), induplicate-valvate or imbricate in bud, patent or 

 more rarely erect. Stamens as many as the corolla-lobes, rarely fewer, 

 inserted in the corolla-tube ; filaments short or long ; anthers distinct 

 or conniving in a cone, cells parallel or diverging, dehiscing by terminal 

 or oblique pores or longitudinal slits. Disk annular, entire or lobed or 

 absent. Ovary superior, sessile or shortly stipitate, 2-5-celled : style 

 terminal, filiform or clavate ; stigma terminal, small or slightly expanded 

 or bilamellate ; ovules numerous, anatropous or amphitropous. Fruit 

 an indehiscent berry, or a capsule dehiscing by valves or circumscissile. 

 Seeds numerous, small ; albumen fleshy ; embryo often terete, near the 

 outside of the albumen ; cotyledons semiterete, rarely wider than the 

 radicle. — Herbs, erect or climbing shrubs, more rarely trees, glabrous, 

 pubescent or stellately tomentose, sometimes spiny. Leaves alternate, 

 geminate or verticillate, entire or variously lobed. Inflorescence 

 cymose, terminal, leaf-opposed or extra-axillary, sometimes appearing 

 umbellate, racemose or fasciculate, or reduced to one flower. 



Species about 1400, absent only from arctic and alpine regions, very abundant in 

 tropical and e.\ti - a-tropical South America. 

 Fruit bacc \te. 



Anthers usually dehiscing by pores . . . . 1. Solanoi. 



Anthers dehiscing by longitudinal slits. 

 Calyx much enlarged in fruit. 



Flowers solitary ...... 2. Phxsalis. 



Flowers fascicled ...... 3. WlTHANlA. 



Calyx not or slightly enlarged in fruit. 



Corolla subrotate, valvate . . . .4. Capsicum. 



Corolla urceolate, induplicate-valvate . . 5. Discopodioi. 



Corolla tubular or funnel-shaped, imbricate . 6. Lycium. 

 Corolla salver-shaped, induplicate-valvate . . 7. Cestrum. 



Fruit capsular. 



Capsule 4-valved ....... 8. Datura. 



Capsule circumscissile ...... 9. Htoscyamus. 



Capsule 2-valved. 



Stamens 5 . . . . . ■. . .10. Nicotiana. 



Stamens 2 . . . . . . . .11. Schwenkia. 



1. SOLANUM, Linn. ; Benth. et Hook. f. Gen. PI. ii. 888. 



Calyx campanulate, rotate or cupular, 4-5-toothed or -lobed, some- 

 times slightly enlarged in fruit. Corolla rotate or widely campanulate ; 

 limb plicate, or more or less deeply 4-5-lobed and induplicate-valvate. 

 Stamens 4-5, inserted in the corolla-throat ; filaments very short ; 



