PLATE XIII. PITCH PINE. 



1. Branch with needles and terminal cluster of buds, x 



2. A cluster of three needles, x i. 



3. Tip of a needle with serrate margin, enlarged. 



4. Branch with needles and a closed cone, x i. 



5. An open cone, x J. 



6. Lower side of a cone scale, x i. 



7. Upper side of a cone scale with two winged seeds, x 



8. A winged seed, natural size. 



9. A seed, natural size. 



