130 A tar ism. 



striped flowers Init T liave not yet come across suitable 

 material for the investigation of this point. 



In 1892 I had raised from bought seed of A. ma jus 

 liitcum rubro-striatum a large bed of plants the flowers 

 of which were all striped. I gathered the seed of one 

 individual for the next year's crop (1893). I obtained 

 about 40 flowering plants in this way; the majority bore 

 flow^ers with fine stripes, and here and there flowers 

 occurred of which one-half was a uniform red. There 

 were four plants which only bore pure red flowers. Of 

 these I selected the strongest, enclosed tlieir spikes in 

 bags and fertilized their flowers with their own pollen. 

 Besides these I dealt in the same way with two striped 

 plants, wnth few and fine stripes. 



As soon as the seeds germinated in the follown'ng 

 spring a difference became visible : the seedlings from the 

 seed of striped plants had green foliage, those from tlie 

 red, however, w^ere reddish brown. This difference was 

 ])articularly striking on the under surface of the later 

 leaves of the young plants. On the former bed 152 plants 

 flowered, on the latter 71. Both groups consisted of 

 ])lants with striped flowers and plants with red ones, but 

 as I had expected, in very different proportions. The 

 proportions in the offspring from the two types of parents 

 were as follows : 



Most of the striped flowerr were finely striped • 

 coarsely striped plants only occurred in the proportion r 

 of 6 and 7%. 



The characters of both races are therefore heritable 

 but, so to speak, incompletely so. We may describe the 



