208 ALTERATION OF POSITION. 
Fig. 109 shows the regular erect form; fig. 110 
the calyx of the same flower; while in fig. 111 are 
shown the stamens and style of the two plants respect- 
ively. In the upper figure the style of the peloriate 
variety is shown as nearly straight, and the stamens 
undergo a corresponding change. No doubt the rela- 
tive fertility and capacity for impregnation of the two 
varieties is affected in proportion to the change of 
form. The Gloxinia affords an instance of regular con- 
genital peloria in which the regularity of form and 
the erect direction are due to an arrest, not of growth, but 
of development, in consequence of which the changes 
that ordinarily ensue during the progress of the flower 
from its juvenile to its fully formed condition do not 
take place. 

Fia. 110.—Calyx of erect Fie. 111.—Stamens of erect 
Gloxinia. regular, and of pendent irre- 
gular-flowered Gloxinia. 
A similar alteration accompanies this form of peloria 
in other flowers (see Peloria). A change in direc- 
tion may result also from other circumstances than 
those just alluded to. Abortion or suppression of 
organs will induce such an alteration; thus in a 
flower of Pelargonium now before me three of the five 
carpels, from some cause or other, are abortive and 
much smaller than usual, and the style and the beak- 
