68 ELEMENTARY WOODWORKING 
a broad-leaved tree, whether it belongs to the white- 
oak group; and after studying trees a little we can tell 
whether a member of this group is a white oak, a post 
oak, or a mossy-cup oak. 
Compare the post-oak leaf (Fig. 80) with that of the 
white oak. There is not a great difference in form, but 
the post-oak leaf is thick, leath- 
ery, and dark green, while the 
white oak has a beautiful thin, 
light green leaf, which turns red 
in the fall. 
The post oak is a rougher and 
coarser tree than the other, and 
is sometimes called tron oak on 
account of its very hard, tough 
wood. 
29. The Mossy-Cup Oak. One 
of the most beautiful oaks we 
Fic. 81. Leaf of Mossy-Cup have in America grows in the 
mer South and West, and is only 
rarely found in our parks in the East. It is called the 
mossy-cup oak because the large acorn which it bears is 
surrounded by a bushy fringe which almost hides the 
nut. This acorn is a sight never to be forgotten. The 
leaf is larger than that of.the white oak, and although 
the two leaves look somewhat alike, the divisions of the 
