VARIOUS FOOD-PLANTS 



59 



Fig. 57. — Sweet Potato. Flower-clustors r-oniing from leaf-axils, '.. 

 Flower, cut verticallj'; natural size. Fruit, i. Seed, out in half 

 vertically to show the folrir-rl (Tfrni in seed-food fdottod), t. (Original.) 



Fig 



58, I. — White 

 Potato {Solanu in 

 tuberosum, Night- 

 shade Family, So- 

 lanacece). Base of 

 plant growing 

 from an old tuber 

 and producing 

 new tubers at the 

 tip of under- 

 ground branches 

 of the stem. 

 (Baillon-.)~Plant 

 a perennial con- 

 tinued from year 

 to year by its tu- 

 bers; stem erect, 

 about 0.7 ni. tall; 

 leaves dull green, 

 hairy ; flowers lilac 

 or white; fruit 

 fleshy, green. 



