262 



Jlte Pedigree Fainilies. 



early and as completely as possible, without counting 

 them. I found, altogether, 102 mutants but in quite 

 different proportions to that in which they appeared in 

 the previous year. Particularly was this the case with 

 albida and lata which were very rare and with rnbri- 

 nervis which was relatively plentiful. 



I shall now display the result of this experiment in 

 the form of a genealogical table similar to that on page 

 224. The two parts of the last generation which appeared 

 in the two successive years are entered separately. 



OENOTHERA LAMARCKIANA. 



A 



THE LAMARCKIANA-FAMILY. 



II 

 TABLE TO SHOW THE ORIGIN OF NEW SPECIES IN A BRANCH 



OF THE MAIN CULTURE. 



(The figures refer to the numbers of individuals.) 



