. Diseases of deciduous forest trees. Trees -- Diseases and pests. Fig. 1.—Fruiting Body of Polyporus sulphureus. Fig. 2.—Cross Section of a Living Post Oak Tree Rotted by Polypo 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 Von Schrenk, Hermann, 1873-1953; Spaulding, Perley, 1878-. Washington : G. P. O.

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