38 



ROSACEA 



[CH. Ill 



minent and gradually 

 eventually fuses with 

 In Cotoneaster the 

 their extreme ventral 

 with the swollen but 

 tcegus (Hawthorn, Fig. 

 the stone-like achenes, 

 like Haw. 



undergoes profound changes, and 

 the enclosed fruits proper. 

 stony achenes are only united at 

 bases, but their other sides join 

 hardly fleshy calyx-tube ; in Cra- 

 37) the fleshy calyx-tube fuses to 

 and so the whole forms the drupe- 





1. flowering shoot ; 



Fig. 37. Hawthorn, Cratcegus Oxyacantha. 

 2, fruit ; 3, section across latter (Wo). 



In the Quince, Apple, Pear, &c. the much enlarged 

 and fleshy calyx-tube invests and fuses with the several- 

 seeded, horny true fruits, each of which is structurally 

 a follicle. The whole results in a berry-like inferior false 

 fruit, known as a Pome. 



