262 LXXXIX. SOLANACE.i;. 



Corolla-lobes more or less imbricate. 



Calyx and corolla small 4. Lycium. 



Fruit capsular. 



Capsule 4-cellecl, 4-valvecl or subindehiscent. 



Calyx in fruit circumscissile above tlie base 5. Datl"RA. 



Capsule circumscissile near the apex 6. H yoscyamus. 



1. SOLANUM, Linn. 



Herbs or shrubs sometimes subscandent (rarely small trees), unarmed 

 or prickly. Leaves alternate or subopposite, entire, lobed or pinnatisect, 

 solitary or twin. Flowers in dicliotomous or racemose lateral or 

 terminal cj^mes. Calyx 5-10-lobed (rarely 4-lobed or subentire), un- 

 altered or enlarged in fruit. Corolla rotate, rarely campanulate ; tube 

 short ; limb plicate, usually 5-lubed. Stamens 5 (rarely 4-6) in the 

 corolla-throat; filaments short; anthers oblong, often narrowed up- 

 wards, connivent in a short cone, opening by terminal pores or short 

 slits. Ovary 2-celled, rarely (in cultivated forms) 3-4-celled ; style 

 columnar ; stigma small. Berry small or large, globose or elongate. 

 Seeds numerous, usually discoid ; embryo peripheric. — Distrib. Warmer 

 regions of the globe, most abundant in America ; species more than 

 700. 



Unarmed. 



An annual herb ; flowers in umbellate cymes 1. S. nigrum. 



Shrubs, imderslirubs, or small trees. 



Shrub or small tree 6-20 ft. high ; flowers white in 



corymbose cymes 2. S. verhascifoUum. 



Shrubs 3-6 ft. high ; flowers purjole. 



Flowers in racemose cymes 3. 8. jpithescens. 



Flowers in lateral fascicles. 



Calyx entire or obscurely 5-toothed 4. 8. bigeminatmn. 



Calyx with 5-8 conspicuous teeth 5. S. deniictdatum. 



Armed uith pr icicles. 



Herbs. 



Leaves 6 in. or more long ; berry |-l-j in. in diam., densely 



clothed with long hairs 6. 8. ferox. 



Leaves not exceeding 4 in. long; berry -g-f in. in diam., 



yellow, or white with green veins, glabrous 7. 8. xanihocarpum. 



Shrubs or undershrubs. 



Leaves entire, not prickly on the midrib. 



A tall hoary-tomentose shrub reacliing 12 ft. high ; 



leaves 5-9 in. long 8. S.gigantenm, 



Leaves exceeding 2 in. long, more or less sinuately or 

 pinnately lobed, prickly on the midrib. 

 Flowers hermaphrodite. 



Berry ^ in. in diam., yellow 9. 8. indiciim., 



Male flowers in a raceme ; female flowers solitary. 



Berry |-l in. in diam., yellow 10. 8. incanum. 



Leaves not exceeding 2 in. long. 

 Petioles and pedicels prickly. 



Berry \,-^ in. in diam., scarlet 11. 8. trUobaliim. 



Petioles and pedicels not prickly. 



Flowers in racemose cymes ; pedicels \-^ in. long ; 



calyx-teeth triangular ; berry yellow 12. 8. olhicmdc. 



Flowers in fascicles ; pedicels | \h in. long, filiform ; 



calyx-teeth linear ; berry yellow 13. 8. gracilipcs. 



