PERICARTS 



153 



261. Strawberries. The edible part is torus. 



without particular reference to its structure. The botani- 

 cal and horticultural conceptions of a berry are, therefore, 



unlike. In the botanical 

 sense, gooseberries, cur- 

 rants, grapes, tomatoes, 

 potato - balls and even 

 eggplant fruits (Fig. 2G1) 

 are berries; strawberries, 

 raspberries, blackberries 

 are not. 



i'!)."). A fleshy pericarp 

 containing one relatively 

 large seed or stone is a 

 drupe. Examples are plum (Fig. 262), peach, cherry, 

 apricot, olive. The walls of the pit in the plum, peach, 

 and cherry are formed from the inner coats of the ovary, 

 and the flesh from the outer coats. Drupes are also 

 known as stone fruits. 



296. Fruits which are formed by the subsequenl union 

 of separate pistils are aggregate fruits. The carpels in 

 aggregate fruits are usually more or less fleshy. In the 

 raspberry and blackberry flower, the pistils are essentially 

 distinct, but ;is the pistils ripen they cohere ami form 

 one body. Pig. 263. Each of the carpels or 

 pi>tils iii the raspberry and blackberry is a 

 little drupe, or drupelet. In the raspberrj the 

 entire Eruil separates from the torus, Leaving 



the torus on t he plant . hit he 



blackberry and dewberry the fruit 



adheres to t he torus, and the two 



,'l Pe 1'ellH IVed tOgel her when t he 



fruit is picked. 



J!)7. accessory fruits. -When - ,,; ' ""'" 1 " 

 the pericarp and some other pari grow together, the Pruil 

 is said to lie accessory or reinforced (286). An example 



Dlagrai 



:i pea i i be 

 ii-.-.-i .if :. 

 ./, ,ui.i the 

 perl Hi' 6. 



