BY THE SELECTION OF SOMATIC VARIATIONS. 19 



Color pattern green-yellow spotted-solid red: This pattern has the 

 solid red as in the preceding type, but the conditions of yellow and 

 green are as in type green-yellow spotted-red blotched. 



Color pattern green-solid red (fig. 9): This pattern has the entire 

 leaf above and below of a uniform violet carmine. It differs from type 

 green-yellow-solid red in the absence of any underlying yellow, and from 

 type green-red blotched in having the epidermis completely red instead 

 of red in blotches. The pattern is dull and dark, with a somewhat 

 metallic luster, in marked contrast to the various patterns with yellow. 



Color pattern green-yellow-solid red upper center (figs. 10 and 10a) : 

 This is a brightly colored and attractive pattern with a rather com- 

 plicated arrangement of colors. The subepidermal colors of green 

 center and yellow border are similar to the arrangement in the types 

 green-yellow-red blotched and green-yellow-solid red. The epidermal 

 red is, however, almost entirely confined to the upper surface; over 

 the central green it gives a greenish violet carmine cast ; over the border- 

 ing yellow it forms a band of nopal red. At the extreme margin it is 

 absent, giving a narrow but irregular band of pure yellow. On the 

 under surface there are only occasional small blotches of red. About 

 the border the red of the upper epidermis shows through the yellow, 

 giving pale pinkish tints, as shown in figure 10a. This type was 

 derived from pattern green-yellow-solid red, with its complete covering 

 of epidermal red, by the loss of red on the under surface and about 

 the extreme margin of the upper surface. 



Color pattern yellow-green-solid red (fig. 11): This pattern was 

 derived from type green-yellow-solid red by a reversal in the relative 

 position of the underlying green and yellow, the change being the same 

 that gave type yellow-green-red blotched from pattern green-yellow-red 

 blotched. 



Color pattern green-yellow (fig. 12) : This is a bright pattern of green 

 center and yellow border with no expression of epidermal red. Some few 

 internal or vascular strands of red may be seen. The pattern differs 

 from that of type green-yellow-red blotched in having no epidermal red. 



Color pattern green (fig. 13) : A pattern of pure spinach green with 

 no yellow and no epidermal red, but with a few streaks of red in the 

 vascular strands or in the mesophyl. This pattern differs from the 

 parental pattern green-yellow-red blotched in the loss of both yellow and 

 epidermal red. The green-yellow spotted pattern (type 13 a, not illus- 

 trated) differs only in having yellow spots. 



Color pattern yellow-green (fig. 14): This type has a green border 

 and a yellow center, with no epidermal red. It differs from the 

 green-yellow pattern in the reversed position of the two color elements 

 and from pattern yellow-green-red blotched in having no epidermal red. 

 As in the case of the green-yellow type, the pattern is bright and 

 attractive. 



