STUDIES ON BEAN BREEDING. 173 



rather narrow stripe of pigment extending anteriorly from just 

 in front of the micropyle to the apex of the bean. The second 

 color area is that surrounding the micropyle and extending in 

 the form of a horse-shoe around the anterior end of the hilum. 

 This color area may or may not unite with the anterior stripe 

 (cf. Figs. 42 and 43). The third color area is much larger 

 than either of the others and much more variable in form. It 

 covers the caruncle at the posterior end of the hilum and ex- 

 tends at least part way around the posterior end of the hilum. 

 This pigment area may or may not meet the horse-shoe band 

 from the second pigment area. If it does there is formed a 

 narrow band of dark pigment surrounding the hilum (hilum 

 ring). This third pigment area extends posteriorly almost 

 but not quite to the posterior edge of the bean. In some cases 

 the posterior edge of this area is forked or slightly irregular. 

 Starting immediately behind the caruncle two rather broad 

 wings extend forward along the sides of the hilum. These 

 wings should extend forward to the level of the micropyle. 

 These wings should not unite with the color area surrounding 

 the micropyle. The colored area should be sharply defined with 

 few irregularities. The pattern should be symmetrical on the 

 two sides and there should be no spots outside the pattern. 



The color of the eye should be medium dark as shown in 

 Fig. 38. The color should be of even intensity over the whole 

 of the pattern except in a narrow band around the hilum and 

 in the region of the micropyle and over the caruncle. These 

 areas have a much darker and browner pigment than the re- 

 mainder of the pattern. The market requirements in regard to 

 color are not strict. Any shade of brownish yellow pigment 

 will be accepted provided it is not too light. As in the case of 

 the Improved Yellow Eye the color must be deep enough to 

 contrast with the white background. Light and faded appear- 

 ing colors will not bring the best prices. Brightness of color 

 is, however, always more important than the exact shade (cf. 

 p. 168). 



In regard to the color pattern itself there is an almost infinite 

 number of variations from the type described above. 



