184 [ ROSACEOUS FRUITS 



(tribe Pomaceae) are united together by close affinity, 

 which is shown not only by their anatomical character, 

 but also by the facility with which they can be budded or 

 grafted upon each other. Thus, the pear can be grafted 

 on pear seedlings, on the quince and on the hawthorn, 

 the apple can be grafted on several species of wild 

 apple, on the quince and on the hawthorn; the quince 

 can be grafted on own seedlings, on the pear, on the wild 

 apples and on the hawthorn; this last can be grafted on 

 hawthorn seedlings, on the pear, the apple, the quince 

 and the loquat, and the loquat can be grafted on the 

 hawthorn as well as on its seedlings, while the medlar 

 can be grafted on its seedlings, on the quince and on the 

 hawthorn. The service tree is more refractory, but can 

 be grafted on its own seedlings or suckers and on Pirus 

 aucuparia and other species of Pirus. The kernel fruits 

 produce their flowers in umbels or clusters, rarely in 

 panicles. Their fruit or pome is the enlarged receptacle 

 or calyx of the flower, and at the central part or core is 

 divided into five locules each containing one or more 

 soft-coated seeds (pips or kernels). The five segments 

 of the calyx persist in the ripe fruit. They are further 

 linked together by their common liability to certain 

 fungous or insect parasites, and as a rule do not exude 

 gum from wounds or breaks of the bark of the stem or 

 branches. 



The stone fruits or drupe fruits ^frutta a 

 nocciuolo, F = fruits d noyauo^) include the almond, the 

 peach, the nectarine, the plum, the apricot, and the 

 cherry. These fruits are closely related to each other in 

 the same manner as the kernel fruits. In fact the almond 

 can be grafted or budded on its seedlings, on the peach, 

 on the nectarine, on the plum and on the apricot; the 

 peach and nectarine are grafted on the almond, the 

 plum, the apricot and on their own seedlings; the plum 

 is grafted on the wild plums, on the almond, on the peach 

 and nectarine and on the apricot; the apricot can be 



