268 PHYLLODY 
of the former, so that many intermediate stages could 
be traced between the ordinary ovule and the ovary 

Ap 2. 
Fie. 146.—1. Placenta of Dianthus, bearing ovules and carpels. 
2. One of the ovaries separated. 

Fia. 147.—Ovules of Dianthus passing into carpels. 
(fig. 147, 1, a, 2, b). Some of these carpels, thus 
derived from the ovules, themselves bore secondary 
ovules on a marginal placenta, as shown in the sec- 
tions at c, d, e. Could such a change occur in the 
animal kingdom, there would be the unfertilised ovum 
