REGULAR PELORIA. 219 
CHAPTER II. 
REGULAR PELORIA. 
When an habitually irregular flower becomes regular, 
it does so in one of two ways; either by the non- 
development of the irregular portions, or by the forma- 
tion of irregular parts in increased number, so that the 
symmetry of the flower is rendered perfect, as in the 
original peloria of Linnzeus, and which may be called 
irregular peloria, while the former case may be called 
regular peloria. This latter appearance is therefore 
congenital, and due to an arrest of development.' As 
the true nature of these cases has not been in all 
cases recognised (even Moquin places them under the 
head of deformities—they being less entitled to rank 

Fig. 116—Regular Peloria, Fia. 117.—Sepal, petal, &c., of 
Delphinium. regular-flowered Delphinium. 
in that class than are the usual flowers), it may be well 
to cite a few instances taken from various families. In 
Delphinium peregrinum I have met with perfectly 
regular flowers having five sepals and five oblong 
stalked petals, and a similar occurrence has been noted 
' «On the existence of two forms of Peloria,” by M. T. Masters. 
‘Nat. Hist. Review,’ April, 1865. 
