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Fomitopsis betulina This common bracket fungus, the birch polypore or razor strop, is widespread throughout the northern hemisphere and the main cause of brown rot on birch (Betula sp.) trees. It is well known due to its long history of traditional uses and pieces of it were found among the belongings of Ötzi the Iceman, a mummified man who lived over 5000 years ago and was found in the Alps b...

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Piptoporus betulinus, Birch polypore, birch bracket, or razor strop “Grows almost exclusively on birch trees. The brackets burst out from the bark of the tree, and these fruiting bodies can last for more than a year. Technically, it is an edible mushroom, with a strong, pleasant “mushroomy” odor but a bitter taste. The velvety cut surface of the fruiting body was traditionally used as a ...

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