. Diseases of economic plants . Plant diseases. TBEES AND TIMBER 417 with the upper surface in early stages a bright orange-red ; later they are sulphur-yellow both above and below. The. Fig. 179. ^ Polyporus sulphureus showing effect upon wood of oak tree. After von Schrenk. upper surface when bruised is brown. The sporophore is soft and fleshy when young, growing harder with age until 2 E. 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
. Diseases of economic plants . Plant diseases. TBEES AND TIMBER 417 with the upper surface in early stages a bright orange-red ; later they are sulphur-yellow both above and below. The. Fig. 179. ^ Polyporus sulphureus showing effect upon wood of oak tree. After von Schrenk. upper surface when bruised is brown. The sporophore is soft and fleshy when young, growing harder with age until 2 E. 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 Stevens, Frank Lincoln, 1871-1934; Hall, John Galentine, 1870-. New York : Macmillan
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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910
