Origin of Peloric Toadflax 469 



But as the whole life-history of the preceding 

 generations had been carefully observed and 

 recorded, the exact interpretation of the fact 

 was readily made. 



My culture commenced in the year 1886. I 

 chose some plants of the normal type with one 

 or two peloric flowers besides the bilabiate ma- 

 jority which I found on a locality in the neigh- 

 borhood of Hilversum in Holland. I planted 

 the roots in my garden and from them had the 

 first flowering generation in the following sum- 

 mer. From their seeds I grew the second gen- 

 eration in three following years. They flow- 

 ered profusely and produced in 1889 only one, 

 and in 1890 only two peloric structures. I saved 

 the seeds in 1889 and had in 1890-1891 the third 

 generation. These plants likewise flowered 

 only in the second year, and gave among some 

 thousands of symmetrical blossoms, only one 

 five-spurred flower. I pollinated this flower 

 myself, and it produced abundant fruit with 

 enough seeds for the entire culture in 1892, and 

 they only were sown. 



Until this year my generations required two 

 years each, owing to the perennial habit of the 

 plants. In this way the prospects of the cul- 

 ture began to decrease, and I proposed to try to 

 heighten my chances by having a new genera- 

 tion yearly. With this intention I sowed the 



