148 MISC. PUBLICATION 4 7 7, U. S. DEPT. OF AGRICULTURE 



Miscellaneous Publication 477, U. S. Dept. of Agriculture 



PLATE 56 





Quercus humboldtii Bonpl. A common form, isotvpe of Q. Undent A. DC, from 

 Colombia {Linden 1325— -NY). 



