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 the so-called 

 inferior ovary is partly axial partly foliar, i. e., sepaline, 

 and partly carpellary in its nature. 



Dialysis of the sepals in calyces that are usually 

 gamosepalous has been most frequently observed in 

 BosacecBy Pomacece, TJinhelUferce^ less commonly in 

 LeguminoscB, also in the following genera : Primula, 

 Syinphytum, Gentiana, Campanula , &c. 



Dialysis of the corolla is Hkewise of frequent occur- 

 rence, either partially or to such an extent as to render 

 the corolla truly polypetalous. Among Lahiatce the 

 upper lip of the corolla may be often met with partially 



Fig. 30. Dialysis of the sepals aud petals iu Correa. 

 ^ ' Bull. Sec. Bot. France; t. xiii, 1866, p. 234. 



