ON THE TIGRIDIA 



Even from the single bud of a bulb, as we have 

 seen illustrated in several cases, a new plant will 

 grow that will duplicate absolutely in the inter- 

 pretation just given the qualities of the parent 

 plant. And when we were studying the fruit trees 

 we saw that the same thing is true of any aerial 

 bulb if grown even on a foreign branch. 



Root bulb and aerial bulb alike contain the 



essential germ plasm of the individual of which 



they are a part. They nurture potentialities of a 



new individual that will duplicate the parent form. 



GERM PLASM AND BODY PLASM 



From all of which it follows that the germ 

 plasm of the plant cannot be thought of as isolated 

 from the body plasm. It may well enough be 

 segregated within the substances of any given cell. 

 But that it is present in connection with the living 

 cells of the plant everywhere, from its roots to its 

 remotest stem, is clearly demonstrated by the 

 every-day methods of propagation employed in 

 orchard and garden. 



Such being the case, it is difficult to avoid the 

 conviction that the germ plasm that is part and 

 parcel of every cell of the body plasm of the entire 

 plant is more or less subject to the environing 

 influences that effect the body of the plant. And 

 from this it would follow, at least as a reasonable 

 inference, that environing influences that modify 



[99] 



