﻿FIG. 
  104. 
  A 
  group 
  of 
  leaves 
  and 
  acorns 
  illustrating 
  some 
  of 
  the 
  differences 
  

   between 
  six 
  species 
  of 
  oak 
  (Quercus) 
  

  

  A, 
  the 
  white 
  oak 
  (Q. 
  alba) 
  ; 
  B, 
  the 
  red 
  oak 
  (Q. 
  rubra) 
  ; 
  C, 
  the 
  hur 
  oak 
  (Q. 
  macro- 
  

  

  carpa) 
  ; 
  D, 
  the 
  black 
  oak 
  (Q. 
  velutina) 
  ; 
  E, 
  the 
  hlackjack 
  oak 
  (Q. 
  marylandica) 
  ; 
  

  

  F, 
  the 
  live 
  oak 
  (Q. 
  virginiana). 
  The 
  acorns 
  are 
  ahout 
  three 
  fourths 
  natural 
  size 
  

  

  and 
  the 
  leaves 
  less 
  than 
  one 
  half 
  natural 
  size. 
  Modified 
  from 
  R. 
  B. 
  Hough 
  

  

  195 
  

  

  