DEFINITIONS 



THE fruit is the ripened ovary, its contents, 

 and any other parts that are closely connected 

 with it. 



A berry is rather thin-skinned, and has its 

 seeds loosely imbedded in soft pulpy or succu- 

 lent material. An orange, a grape, a currant, 

 are illustrations. 



A drupe has for its distinguishing feature a 

 stone inclosing the seed. The portion surround- 

 ing it may be fleshy, as in the peach ; fibrous, as 

 in the cocoanut ; or leathery, as in the walnut. 



A pome has its seeds and their cartilaginous 

 or bony surrounding membranes inclosed in a 

 fleshy mass, which is thickened calyx or some- 

 times partly receptacle. Apple, pear, and quince 

 are examples. .. 



Aggregate fruits are masses of several carpels 

 of the same flower which, when ripe, may or may 

 not remain fast to the receptacle on which they 

 are borne. Raspberry and blackberry are famil- 

 iar examples. 



Multiple fruits are compact masses of the 

 ripened product of many flowers. Pineapple 

 and mulberry are the usual illustrations. 



Accessory fruits are simple fruits which have 

 incorporated with them, as part of their mass, 

 the developed surroundings or supports of the 

 pistil. Gaultheria has its capsule surrounded by 

 thickened fleshy calyx. 



XXV 



