MUSHROOM INEDIBLE. "Silver Wings" is a fungal disease caused by the fungus trees Chondrostereum purpureum. In addition to the attack trees and most types of roses from the family Rosaceae, genus Prunus, particularly. The disease is progressive and leads to the extinction of the host. According to modern taxonomy name Chondrostereum purpureum is only remotely related to gender Stereum, actually belongs to the order Poliporales, while classified in the genus Stereum Russulales. After the start of the vegetation on the host tree bark, the fungus develops wave structure intergrovinalne console, about 3cm wide and has a rubber structure of meat. I have the edge trusiste intense violet color and the upper surface has a gray aspects, and covered with a whitish coat. After two weeks of intensive vegetation fungus dehydrates, becomes monotonous with brown or beige. Microscopy showed spores cylindrical with arch relationships.