Bui. 1061, U. S. Dept. of Agriculture. 



Plate 1 1 



Fig. 1. — A heavy crop of longleaf pine cones bearing 

 seed occurs widely over the South at intervals of 

 about every 7 years. The flowers "set" early in the 

 spring; the seeds require 2 years to mature, and are 

 usually shed in September. Seed crops can thus be 

 foretold more than a year ahead by observing the 

 small green cones on the trees in the summer and fall 

 during their season of devlopment. 



H',. 2. Poll '■ ' "' i com '" buri i") ol Lha longleal pin i 



