EXPLANATION OF THE PLATES. 



Plate 1. The White Oak. Quercus alba. Fig. 1. A leaf and acorns of the 

 natural size. 2. A leaf of half the natural size. 3. Male flow- 

 ers and leaves. 4. A single flower magnified, showing the 6 

 stamens, and the parts of the perianth. 5. Section of an acorn, 

 of the natural size, showing the 2 large cotyledons occupying 

 almost the whole cavity of the shell, and between and above 

 them the radicle pointing towards the upper end of the shell, 

 from which it is destined to issue, showing that the radicle is 

 superior. 



Plate 2. The Overcup White Oak. Q. macrocarpa. Leaves and fruit. 



Plate 3. The Rough Oak or Post Oak. Q. stellata. Leaves and fruit. 



Plate 4. The Swamp White Oak. Q. blcolor. Leaves and fruit. 



Plate 5. The Chestnut Oak. Q. castanea. Leaves and fruit. 



Plate 6. The Rock Chestnut Oak. Q. montana. Leaves and fruit. 



Plate 7. The Black Oak. Q. tinctbria. Leaves and male flowers. 



Plate 8. The Black Oak. Q. tinctbria. Leaf and fruit. 



Plate 9. The Scarlet Oak. Q. coccinea. Leaf, fruit and female flowers. 



Plate 10. The Red Oak. Q. rubra. Leaf, fruit and female flowers. 



Plate 11. The Bear Oak. Q. ilicifblia. Leaves, fruit and female flowers. 



Plate 12. The Shellbark Hickory. Carya alba. Leaf, fruit and male flowers. 



Plate 13. The Mockernut Hickory. C. tomentbsa. Fruit and (a) male and 

 (b) female flowers of the natural size; leaf reduced. 



Plate 14. The Pignut Hickory. C. porcina. Leaf and fruit. 



Plate 15. The Bitternut Hickory. C. amara. Leaf and fruit. 



Plate 16. The Nettle Tree. Celtis occidenlalis . Leaves, fruit, and flowers. 



Plate 17. The Tupelo Tree. Nyssa multifibra. Leaves, fruit and (a) male 

 and (b) female flowers. 



