RED OAK. 



Quercus rubra L. 



Fig. 158. Branchlet bearing mature acorns and leaves and young acorns, 1 ; branchlet in 

 winter. 2 (Note the presence of young acorns resulting from flowers of the previous summer 

 and to mature the following season). 



159. Large trunk of tree in Genesee valley, N. Y. 



160. Wood structure magnified 15 diameters. 



