Other Characters in Oenothera Laniarckiaua. 489 



serving them minutely: if I had, this hst would have 

 been considerably longer. 



The occurrence of buds on the cotyledons is the last 

 example of one of these commonly recurring anomalies 

 that I shall give. The young plants sometimes come up 

 with three cotyledons (p. 474), sometimes witli two, of 

 which one is more or less deeply split. In the latter case 

 a small bud is sometimes formed in the fork of the spht, 

 which looks most extraordinary, especially when t'ne un- 

 split part of the cotyledon is fairly large. I first saw this 

 phenomenon in 1 897 ; since then I have seen about a 

 dozen examples of it (Fig. 1 12). Sometimes I succeeded 

 in growing these seedlings to maturity and in getting the 

 adventitious buds to develop; they behaved like ordinary 

 rosettes, and it was sometimes difficult to distinguish 

 them from rosettes duplicated by fasciation (Fig. 108) 

 without separating out the parts in question. 



Our figure 113 shows a rosette of this kind in July, 

 i. e., three months old (1900). The cotyledon was 

 deeply split but single at the base. The base of the ad- 

 ventitious rosette and its connection with the cotyledons 

 are much swollen ; so that it seems to come very close to 

 the main group of leaves, but as a matter of fact it is 

 quite sharply separated from it. 



This latent capacity to produce adventitious buds 

 seems to be widely distributed in my cultures. 



The facts recorded make it perfectly evident in my 

 opinion that the potentialities for a series of anomalies 

 are inherited in a latent condition in mv Oenotheras. 



