Shortleaf Pine 



a. Clusters of leaves, x 2/^. 



b. Open cone, x 2^. 



c. Closed cones, x 2/^. 



d. Scales and seeds, x 2/^. 



Spruce Pine 



a. Cluster of leaves, x 2^. 



b. Cone, x 2/^. 



[22] 



