THE CENTRAL AMERICAN SPECIES OF QUERCUS 



95 



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



PLATE 3 



Cups of Erythrobalanus: A, Thickened scales, Q monserratenns C. H. Mull., B 

 thin, closely appressed scales, Q. candicans hee; C, thin, loosely appressed 

 scales, Q. costaricensis Liebm. (all X 3). 



