VEGETATIVE AND SEXUAL REPRODUCTION 155 



is a natural process, since ordinary brandies in the black raspberry 

 and specialized runners in the strawberry take root and form new 



Hooting branch 



arcnt plant 



0/spring 



FIG. 75. Vegetative reproduction in the black raspberry 

 The tip of a branch, or cane, has taken root and formed a new plant 



plants. This natural process is imitated artificially by man in 

 propagating many plants, such as the gooseberry, grape, etc. 



FIG. 76. Vegetative reproduction by runners in the strawberry (Fragaria) 

 1, mother plant ; 2, 3, daughter plants ; r, runner ; b, bud on the runner 



Multiplying branches are often formed, as in common wild 

 plantain (Fig. 77). In such instances the branches, which are at 

 first connected by the mother stem axis, may become separated 



