110 MISC. PUBLICATION 47 7, U. S. DEPT. OF AGRICULTURE 



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



Plate 18 



I.^JjuuLllLi* 



Quercus corrugata Hook. A shade variant and the tvpe of Q. cyclobalanoides Trel. 

 from Chiapas, Mexico {Pur-pus 6998 — US). 



