. Bulletin. Agriculture. Bui 32, Bureau of Plant Industry, U. S. Dept. of Agriculture Plate Disease Caused by Polyporus fraxinophilus. 1, Transection of ash wood; 2, transection of medullary ray; 3, medullary ray, showing later stage of fungus attack; 4, 5, transection of wood cells; 6, starch grains from medullary ray cell; 7, starch grains from diseased wood; 8, transection from entirely rotted 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 perfec
. Bulletin. Agriculture. Bui 32, Bureau of Plant Industry, U. S. Dept. of Agriculture Plate Disease Caused by Polyporus fraxinophilus. 1, Transection of ash wood; 2, transection of medullary ray; 3, medullary ray, showing later stage of fungus attack; 4, 5, transection of wood cells; 6, starch grains from medullary ray cell; 7, starch grains from diseased wood; 8, transection from entirely rotted 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 United States. Bureau of Plant Industry. Washington : G. P. O.
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Keywords: ., bookcentury1900, bookdecade1900, bookpubl, booksubjectagriculture
