. The Central American species of Quercus. Oak; Trees. Quercus corrugata Hook. Isotype of Q. cyclobalanoides Trel. {Pur-pus 6998—USNA seed collection).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Muller, Cornelius H. (Cornelius Herman), 1909-. Washington, D. C. : U. S. Dept. of Agriculture

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Keywords: ., bookcentury1900, bookpublisherwashingtondcusdept, booksubjectoak