Retrograde Varieties 151 



of the lips of the flower around the throat, 

 brightening, as it seems, the entrance for the 

 visiting insects. In many of the red or reddish 

 varieties this one yellow patch remains, while 

 the general yellow hue fails. In the variety 

 called " Brilliant " the yellow ground makes 

 the red color more shiny, and if it is absent the 

 pure carmine tinge predominates. 



It is readily seen, that in the ordinary form 

 the lips are of a darker red than the tube. This 

 evident dissimilarity indicates some complexity. 

 And in fact we have two varieties which exhibit 

 the two causes of this attribute separately. One 

 of them is called " Delila," and has the red 

 color limited to the lips, whilst the tube is pure 

 white. The other is called '' Fleshy," and is of 

 a pale pink throughout the whole corolla. Ad- 

 ding these two units to one another, we get the 

 original dark red of the wild type, and it may be 

 briefly stated here, that the way of effecting 

 such an addition is given us in the crossing of 

 the '' Fleshy " and of the '' Delila " variety, 

 the hybrid showing the both colors and return- 

 ing thereby to the old protot^^)e. 



Other cases of compound flower colors or of 

 color patterns might be given as in the Mimulus 

 and the poppy, and in most of these cases some 

 varieties are to be seen in our gardens which 

 show only the single constituents of the group. 



