Orderly Dissimilarity in Inheritance. 



175 





Types. 



Dubious. 



Rogues. 





Family 1. 







Ports at 9th to 11th nodes 





2 



9 



3 



Pods at 12th to 15th nodes 





— 



23 





Family 2. 





Main stem — 





2 



5 



5 



16th to 18fch nodes 





3 



7 



Branch from 2nd node— 



3 



14 





10th to 12th nodes 







12 









From these six sowings it is evident that the two parents were of the kind 

 which throw a majority of plants lower, that is more rogue-like, than the 

 type, together with a few typical plants which were the produce of the lower 

 pods. This was the case both in the main stem and in a branch from 

 the base. 



In the third family we had from the 9th to 13th nodes 15 types, and 11 

 which were almost certainly types, though not well characterised, while from 

 14th to 17th nodes we had 2 types, 5 below type, and 4 which were almost 

 certainly true rogues. The parent of this family was therefore of the class 

 which throws a large majority of types and a minority of lower forms, and 

 again the lower forms were among the produce of the upper pods. 



We have therefore little hesitation in saying that in these plants a 

 segregation takes place in the soma of the plant, such that the type elements 

 are present especially in the lower parts, just as had been surmised from the 

 structure of the Fi generation. 



In view of this evidence it is probable that rogues which arise directly 

 from typical plants are derived predominantly from the apical pods. Material 

 for testing this suggestion will be sown next spring. 



VOL. LXXX1X. — B. 



