PLATE XVI. YELLOW PINE. 



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



2. A cluster of two needles, x 1. 



3. Tip of needle with serrate margin, enlarged. 



4. Branch with needles and an open cone, x «. 



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



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



7. A winged seed, natural size. 



8. A- seed, slightly enlarged. 



