B. MiYAZAWA 11 



h. Fo generation. 



All the individuals had yellow leaves. As in the case oi A x B we 

 obtained here also flowers of magenta, scarlet, and dark-red colour, and 

 moreover there were found the three usual tones in each. All plants 

 with coloured flowers had the "hukurin" on the corolla. It must be 

 said that all the tones of flower-colour in G x A are somewhat different 

 from those of F2 plants in A x B, and moreover, that the magenta and 

 scarlet colour are slightly more blue-tinged in the former than in the 

 latter. 



The results of both reciprocal hybridisation are shewn collectively in 

 Table XIV. 



TABLE XIV. 



It will be readily seen from the above Table that the results are 

 altogether similar to those of J. x B. 



% BxC. 



a. Fi generation. 



Fi plants had green leaves with deep dark-red flowers. 



b. Fo generation. 



The flower of all Fo plants was deep dark-red, and the leaf-colour 

 segregated into green and yellow. As previously mentioned, there was 

 a little difference between the flower-colours of B and G, and this differ- 

 ence appeared in F.^, but as it was extremely difficult to distinguish 

 them clearly I did not undertake to do this work. I will only mention 

 here, however, that also in yellow plants the flower-colour similar to 

 that of B parent has been observed. The results are indicated in 

 Table XV. 



In the above Table we see that the ratio green, "hukurin" : green, 

 fully-coloured : yellow, "hukurin" : yellow, fully-coloured is 9 : 3 : 3 : 1, so 



