PLATE COXL. 



a and b are the fruit of the "Bigaradier fetifere" of Risso. They show oranges developing 

 within oranges, and the section 6 shows a multiple fruit. At A is shown a rind 

 carpel developed within the pulp carpel, and a second whorl of pulp carpels within the 

 outer one. 



c and d are the fruit of the " Bigaradier a fruit cornicule " of Risso. They show several carpels 

 remaining distinct, and unamalgamated with the others, to form a uniform round 

 fruit. The section, at e and /, shows separate pulp carpels, belonging to the separate 

 rind carpels. 



g is the fruit of the "Granger a frnit cornu" of Eisso. It shows a single carpel persisting 

 in remaining separate. This horn varied in size, but all the oranges of that variety 

 had it more or less developed, and every large appendage had within it a separate 

 pulp carpel. Whatever may be the origin or nature of the citrus rind, it would 

 appear that each pulp carpel had originally its own rind (carpel or not) ; that, in 

 the process of selection and perfection, the pulp carpels remained distinft, while the 

 rind coverings became amalgamated and their separate nature obliterated, 

 These figures are referred to in the Chapter on " Morphology." 



