the oak curtain crust hymenochaete rubiginosa is an inedible mushroom on oaks

agaric autumn background borstelzwam borstenscheibe closeup crust curtain eikebroddsopp forest fungi fungus hymacopy hymenochaete inedible macro mushroom mycology nahkasieni nature nochauml oak pick roestkleurige rostapara rotbraune rouillacopy rubiginosa ruskea tammivuotikka toadstool uneatable wood woodland