. Minnesota plant diseases. Plant diseases. 254 Minnesota Plant Diseases. The scaly pore-fungus rot [Polyporus squamosus (Huds.) Fr.]. This is a very common pore fungus which causes a white rot of timbers. It occurs abundantly in spring, forming large shelves, usually in groups. The fruiting bodies are soft and fleshy at first and their upper surface is conspicuously marked with dark brown or blackish scaly patches (squamae). It is attached, usu- ally by a short stalk, which is almost always found on the edge of the fruiting body. As the latter gets older it loses its fleshi- ness and becomes


. Minnesota plant diseases. Plant diseases. 254 Minnesota Plant Diseases. The scaly pore-fungus rot [Polyporus squamosus (Huds.) Fr.]. This is a very common pore fungus which causes a white rot of timbers. It occurs abundantly in spring, forming large shelves, usually in groups. The fruiting bodies are soft and fleshy at first and their upper surface is conspicuously marked with dark brown or blackish scaly patches (squamae). It is attached, usu- ally by a short stalk, which is almost always found on the edge of the fruiting body. As the latter gets older it loses its fleshi- ness and becomes harder, dying the same season, so that a new. Fig. 125.—Fruiting body of the scaly pore fungus fPolyporus squamosus), seen from both surfaces. After Loyd. crop of fruiting bodies must be formed again the following year. The pores are very large, somewhat shallow and angular and often run down some distance along the stalk. This fungus is usually found on dead logs or stumps but may also grow on dead parts of living trees. The birch-fungus rot {Polyporus betulinus Fr.) This birch fungus is perhaps the most common of our pore fungi. In al- most every clump of birches its fruiting bodies may be 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 Freeman, Edward Monroe, 1875-. Saint Paul, Minn.


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplantdi, bookyear1905