FLOWER TYPES 67 



rose as representing a fourth group, we again find flowers 

 strikingly similar to these groups but with inferior ovaries that 

 never have the development represented by the apple. 



Fig. 54. — Sedge or spike type of inflorescence. Fio. 55. — Blue grass inflorescence. 



Now, the very great resemblance in all these gi'oups leads 

 us to place them all in the one family, Rosacece. 



But in the study of these characters we must make sure that 

 the resemblances are real and not superficial. The fruits of the 

 blackberry and mulberry are very similar in general appear- 



