230 IRREGULAR PELORIA. 



serve to show in what way the irregularity is brought 

 about. In Antirrliiniimy Linaria, &c., intermediate 

 forms show very clearly that it is to the repetition of 



Fia. 122. Peloric flower of Calceolaria. 



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 



> ' Bull. Acad. Belg.,' xviii, part i, p. 591. Lobelia, p. 137. 



