SOLAN ACE^ 591 



cerasiforme, L. pyriforme, and L. esculentum, including under 

 the last the varieties vulgare, validum, and grandifolium. 



The above types of tomatoes may be artificially distin- 

 guished by the following key; in all instances cultivated forms 

 are understood. 



Key to Types of Cultivated Tomatoes 



Fruit in long racemes or branched clusters; berries red, currant-like, Currant, 



German, raisin or grape tomato. 

 Fruit in short racemes or branched clusters. 



Plants low, stiff, and erect, having much the appearance of a potato plant; 



leaves small, curled, Upright tomato. 

 Plants taller, the branches weaker and more spreading. 



Leaves very large, about two pairs of almost entire-margined leaflets, 



Large-leaf tomato. 

 Leaves of medium size, numerous pairs of leaflets the margins of which 

 are toothed or lobed. 

 Fruit pear-shaped, Pear tomato. 

 Fruit globular or angular, not pear-shaped. 



Fruit globular, smooth, red or yellow, from H to ^i inch in diameter, 



two-celled, Cherry tomato. 

 Fruit varying somewhat in shape, surface, and color, larger than 

 preceding, many-celled. Common garden tomato. 



The common tomato (var. vulgare) has undergone consid- 

 erable modification as the result of cultivation. As compared 

 with the small two-celled fruit, with thin walls and a dry 

 placenta, and in some instances with distinct grooves on the 

 surface, the cultivated forms are larger, many-celled, the 

 walls and placenta are thick and fleshy, and the fruit surface 

 smooth. There are three general groups of the common 

 tomato: fruit angular, fruit apple-shaped, and fruit oblong. 



The cherry tomato (var. cerasiforme) has small globular, 

 red or yellow two-loculed fruit. The pear tomato (var. 

 pyriforme) has small red or yellow, two-loculed pear-shaped 

 fruit. The upright tomato (var. validum) looks much like 

 the potato plant in its growth habit. The large-leaf tomato 



