Cerioporus squamosussynonymPolyporus squamosus is a basidiomycetebracket fungus, with common names including dryad's saddle and pheasant's back mushroom.[2] It has a widespread distribution, being found in North America, Australia, and Eurasia, where it causes a white rot in the heartwood of living and dead hardwood trees. The name "dryad's saddle" refers to creatures in Greek mythology called dryads who could conceivably sit and rest on this mushroom, whereas the pheasant's back analogy derives from the pattern of colors on the bracket matching that of a pheasant's back.
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