240 



A TEXT-BOOK OF BOTANY 



All of the fruits mentioned above include only a modi- 

 fied ovary wall with its contents, but many of the most 



FIG. 233. Raspberry: A. flower-stalk, with calyx, 

 old stamens, and prominent receptacle, from 

 which the berry (a cluster of small stone-fruits) 

 has been removed (J5). After BAILEY. 



FIG. 234. Strawberry: an 

 enlarged pulpy receptacle 

 in which numerous small 

 akenes are embedded. 



common fruits do not answer to this description. A few 



of the most conspicuous of these will serve as illustrations. 



A number of the best-known fruits have been named 



"berries" that are not berries as described above. For 



r 



FIG. 235. Longitudinal and transverse sections of apple, showing the five-celled 

 ovary (core) embedded in the fleshy cup of the flower. 



example, a raspberry is a mass of very small stone-fruits 

 that slips from the enlarged top of the flower axis (recep- 



