The Origin of Linaria Vulgaris Pcloria. 213 



the pollen of another peloric plant. I also selected a 

 beautiful hemipeloric plant which bore a profusion of 

 flowers, one of the earlier of which was peloric. It set 

 a quantity of seed after self-pollination.^ 



I repeated the experiment in 1899 with the rest of the 

 seed of the parent plant H, and obtained the same result, 

 as was to be expected. I raised slightly over 300 flower- 

 ing plants, of which 3 were wholly peloric; that is to 

 say, a proportion of 1% again. I observed on the rest 

 a certain number of stray peloric flowers during the 

 course of about two months. 



These three cultures constituted the fifth generation 

 of my experiment. The sixth generation therefore could 

 be raised from the seeds of the hemipeloric plants in it. 

 I did this partly in 1895 from the plants of 1894, and 

 partly in 1897 from those of 1896. The plants which 

 bore the seed had flowered in bags and had been fertilized 

 partly by their own pollen and partly by pollen which 

 I had transferred from one seed-parent to the other. 



In both cases the mutation was repeated. Wholly 

 peloric individuals again arose from hemipeloric ances- 

 tors, in spite of the smallness of the crops occasioned by 

 the poorness of the harvest. 



In 1895 I raised 17 flowering individuals from seeds 

 of the dicotylous plants mentioned on page 559; two of 

 them were wholly peloric, all their flowers being of this 

 type. In 1897 I sowed the seed of the fine hemipeloric 

 plant of 1896 referred to above, but obtained only 7 

 flowering individuals, one of which again, however, was 

 wholly peloric. 



I come now to the consideration of the question as 



' This frequently fails in Linaria vulgaris, but sometimes succeeds 

 more or less completely on very vigorous plants. 



