. Manual of tree diseases . Trees. FIB DISEASES 167 and from the exterior this rot is identified bmthe rusty knots. In the heartwood there are three distinct stages in the progress of the decay. As the rot advances, the newly affected wood is discolored and spongy, with occasional light brown spots. This advance rot, as it is called, extends from two to six feet beyond the distinctly red-brown disorganized wood. In more. Fig. 25. — Fruiting-body of Echinodontium, tinctorium. advanced stages, the wood tm-ns red-brown and is soggy. The annual rings are separated into sheets which appear as brown


. Manual of tree diseases . Trees. FIB DISEASES 167 and from the exterior this rot is identified bmthe rusty knots. In the heartwood there are three distinct stages in the progress of the decay. As the rot advances, the newly affected wood is discolored and spongy, with occasional light brown spots. This advance rot, as it is called, extends from two to six feet beyond the distinctly red-brown disorganized wood. In more. Fig. 25. — Fruiting-body of Echinodontium, tinctorium. advanced stages, the wood tm-ns red-brown and is soggy. The annual rings are separated into sheets which appear as brown cylinders one inside the other. Soon, however, the wood of these partially destroyed rings is dissolved and the tree be- comes hollow. The decay may proceed until only a thin shell of sapwood 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 Rankin, W. Howard (William Howard), b. 1888. New York : The Macmillan Company


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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1918