All-Red Tritomas 



With a bunch of these red tritomas and a bunch of the 

 variegated ones shown in the preceding picture in the garden, 

 there is opportunity for an interesting crossbreeding experiment, to 

 observe color variation. We shall see that numberless flowers 

 offer opportunities for similar studies in color variation; 

 and that few other lines of plant development afford 

 more interesting or more striking results than 

 those that have to do with the modifica- 

 tion of the color of flowers. 



