WHITE PINE 



105 



Seed Formation. The oosperm germinates and forms the 

 embryo sporophyte which finally becomes differentiated into 

 a rudimentary stem or hypocotyl, several seed leaves or 



FIG. 61. White pine. Showing the outer surface of a mature scale, 

 inner view of scale with two seeds, scale free of seeds, the stalk which bears 

 the scales, the mature open cone and a longitudinal section of the cone. 



