NIGHTSHADE FAMILY 215 



3. S. carolinense L. Horse Settle. Perennial; stem erect, 

 branched, dowtiy with star-shaped hairs, armed with straight yel- 

 low prickles, 1-3 ft. high. Leaves ovate-obloDg, deeply toothed or 

 lobed, acute at the apex, abruptly contracted to the short petiole, 

 prickly on the veins. Ilacemes lateral, few-flowered; pedicels re- 

 curved in fruit. Calyx lobes taper-pointed. Corolla deeply angular- 

 lobed, blue or white ; berry globose, smooth, yellow. A common 



4. S. rostratum Dunal. Sand Bur, Buffalo Bur. Annual; the 

 whole plant beset with yellow prickles; stein erect, diffusely branched, 

 1-2 ft. high. Leaves broadly oval or ovate in outline, deeply pin- 

 nately, lobed or parted, petioled, downy with star -shaped hairs. 

 Racemes few-flowered ; pedicels erect in fruit. Calyx very prickly, 

 becoming enlarged and inclosing the fruit. Corolla bright yellow, 

 5-angled, about 1 in. broad. From the West, becoming a troublesome 

 weed in some places.* 



5. S. tuberosum L. Irish Potato. Annual; stem diffuselj' 

 branched, downy, underground branches numerous and tuber-bear- 

 ing. Leaves irregularly pinnatifid and divided. Flowers in eymose 

 clusters, white or purple, with prominent yellow anthers ; pedicels 

 jointed. Corolla 5-angied, J-1 in. broad. Fruit a globose, greenish- 

 yellow, many-seeded berry, about | in. in diameter. Cultivated from 

 Chile.* 



n. tYCOPERSICUM Hill. 



Annual ; stem diffusely branched. Leaves pinnately divided. 

 Flowers in raceme-like clusters on peduncles opposite the 

 leaves. Calyx 5-many-parted, persistent. Corolla wheel- 

 shaped, 5-6-parted. Stamens 6-6, inserted in the short tube 

 of the corolla ; filaments short, anthers elongated. Ovary 2- 

 several-celled ; style and stigma simple. Fruit a many-seeded 

 berry.* 



1. L. esculentum ]\Iill. Tomato. Stem diffusely branched, at 

 length leaning over, furrowed and angled below, sticky-hairy, 3-5 

 ft. long. Leaves irregularly lobed and pinnatifid, petioled. Calyx 

 lobes linear, about as long as the yellow corolla. Fruit (in the wild 

 state) globose or ovoid, red or yellow, i-J in. in diameter, but greatly 

 enlarged in cultivation. Common in cultivation from tropical 

 America.* 



in. LYCIUM L. 



Shrubs or woody vines, often spiny. Leaves entire, alter- 

 nate, often fascicled. Flowers solitary or clustered, terminal 



