DIALYSIS OF THE COROLLA. 71 
inferior ovary, as will be more fully mentioned here- 
after. Here, however, a case recorded by M. J. E. 
Planchon may be alluded to' wherein a quince fruit (Cy- 
donia) was surmounted by five leaves, the surface of the 
pome being marked by as many prominences, which 
apparently ‘corresponded to the five stalks of the caly- 
cine leaves. In this specimen, then, the inferior position 
of the ovary appeared to be not so much due to an expan- 
sion of the fruit stalk, as to the fusion of the hyper- 
trophied stalks of the sepals. Some of the malforma- 
tions among Cucurbits point to a similar structure. It 
is probable that in many of these cases ipa so-called 
inferior ovary is partly axial partly foliar, 7. e., sepaline, 
and partly carpellary in its nature. 
‘Dialysis of the sepals in calyces that are usually 
gamosepalous has been most frequently observed in 
Rlosaceew, Pomacee, Umbellifere, less commonly in 
Leguininose, also in the followmg genera :—Primula, 
Symphytum, Gentiana, Campanula, &e. 
Dialysis of the corolla is likewise of frequent occur- 
rence, either partially or to such an extent as to render 
the corolla truly polypetalous. Among Labiate the 
upper lip of the corolla may be often met with partially 

Fic. 30.—Dialysis of the sepals and petals in Correa. 

1 «Bull. Soe. Bot. France,’ t. xiii, 1866, p. 234. 
