posteisia 85 



around the axis was potentially coty- 

 ledonary, a maximum development 

 taking place at such a point as is in 

 the most favorable position to function. 

 Thus, it occurs next the suspensor in 

 Lycopodium and opposite the suspen- 

 sor in Selaginella. In Gnetum it 

 develops at that point on the circum- 

 ference which will be nearest the seed 

 while the vegetative condition is being 

 established. In the Monocots it ex- 

 tends nearly and sometimes quite 

 around the axis, but usually experiences 

 maximum development on one side. 

 In the Dicots equal growth takes 

 place at two points diametrically oppo- 

 site each other. 



If it should be maintained that 

 the primitive root originated as a 

 terminal member, the originally basal 

 cotyledon would then have become a 

 ring of tissue around the embryo at 



