MURRAY PINE 



Cone and branch (natural size). 



Perhaps you have wondered how it happens that all the 

 cones of the Tamaracks have such queer, flattened bases. 

 An examination shows that the tiny, flattened and 

 dwarfed basal scales are infertile and hence had never 

 received the stimulation for growth resulting from fer- 

 tilization of the ovule by the pollen grains. 



