ROSACEAi. 



fCHAP. 



and bound together by the succulent enlargement of the 

 so-called calyx-tube. 



OBSERVE \X\Q prickles of Bramble and Rose, differhig from 

 spines (page 72) in being processes of the bark and not 

 developments of the axis. Compare the arrangement of the 



F'iG. 12S. Transverse section 

 of a pomaceous fruit. 



Fig. 129. Fruit of Bramble 



I'ic. 130. Single 

 drupel of Bramble. 



carpels in the genera Bramble and Rose. In both the carpels 

 are wholly free from each other, as well as from the calyx- 

 tube ; but in the latter they are arranged upon the inside of 



Fig. I- 



Fruit of Strawberry. 



Fig. 132. Vertical section of flower 

 of Rose (Rosa). 



llie urn- or flask-shaped tube of the calyx (regarded by some 

 botanists as a hollowed receptacle), while in the former they 

 are disposed upon a conical projecting receptacle. In 

 the luiropean Strawberry the arrangement of the carpelir- 



