Trifoliuni Incarnatiun Quadrifoliuiii. 229 



attempt to breed a five-leafed race of the crimson clover 

 {Trifolinin incarnatuni) analog- 

 ous to the hve-leafed race of the 

 red clover (Trifolinin pratcnsc) 

 which has already been described 

 (§ 5, p. 36). I started the ex- 

 periment in 1894; since then I 

 have devoted a great amount of 

 trouble to the task without any 

 result, until in 1900 I gave it up. 

 The attempt simply does not suc- 

 ceed, with my material at any 

 rate. 



The object was worth a great 

 effort. At first I believed that 

 I had artificially made the five- 

 leaved red clover, or as it is 

 often expressed, that I had cre- 

 ated it. The gradual develop- 

 ment of my theory, however, led 

 me to doubt the correctness of 

 this opinion. It seemed possible 

 that I had merelv found the race 

 already existing in nature, but 

 in a condition in which it was 

 not recognizable as such. Eight 

 years however had gone by since 

 the beginning of that culture, 

 and it was practically out of the 

 question to go back to it. I re- Tig. 44. TnfoUnm incar- 



1 1 i.1 r , 1 , natiini. A flowering 



solved therefore to endeavor to branch with a single 4- 

 raise a new five-leafed clover and ^^^'-'^^^ ^^'''^^\ ^'^^ .''^^^"'^ 



, . of an experiment in se- 



selected the crniison clover. This lection lasting six years. 



