CONTRIBUTIONS FROM THE WISLEY LABORATORY. 85 



in colour, and all normal. None showed variation in number or 

 form of petals, stamens, or carpels, but both red and yellow flowers 

 were produced, some of the former with streaks of yellow. The 

 normal type was thus clearly completely dominant to the rogue. 

 We do not know to which colour type the original rogue belonged. 



Fig 29 The ' Rogue ' Wallflower with details of variation in the 



Flower Structure, 



Seed was saved from these plants interpollinated and sown as 

 soon as ripe. Some of the resulting plants flowered in 1913 and 

 showed that the seed had given rise to two types, the normal and the 

 rogue, but as many had not arrived at flowering size they were all 

 grown on to flower in 1914. A few plants died from one cause or 

 another, but 143 flowered, and of these loi were of the normal 



