230 IRREGULAR PELORIA. 
serve to show in what way the irregularity is brought 
about. In Antirrhinum, Iinaria, &c., mtermediate 
forms show very clearly that it is to the repetition of 

Fig. 122.—Peloric flower of Calceolaric. 
the form usually assumed by the petals of the lower lip 
that the condition is due. ‘This is also obvious in 
peloric flowers of the Calceolaria. The perfect peloria 
of this flower is in general erect, with five regular 
sepals, a regular corolla contracted at the base and at 
the apex, but distended in the centre so as to resemble 
a lady’s sleeve, tight at the shoulder and wrist, and 
puffed in the centre ! | 
Morren! describes a form intermediate between the 
ordinary slipper-shaped corolla and the perfect peloria 
just described, and which he calls sigmoid peloria. 
This flower is intermediate in direction between the 
erect peloria and the ordinary reflected flower. The 
tube is curved like a swan’s neck and is dilated in 
front into two hollow bosses, such as we see in the 
lower lip of an ordinary flower; beyond these it is 
contracted and is prolonged into a slender beak termi- 
nating in two hollow teeth, between which is the 
1 * Bull. Acad. Belg.,’ xviii, part i, p. 591. Lobelia, p. 137. 
