species wood decay fungus family species produces fruit bodies vary appearance depending wet dry wet fruit bodies attached strongly wood dry edges reveal dark underside surface pink type species moved genus creation species found primarily europe encountered year primarily growing dead wood especially oak capable growing living wood taxonomy early descriptions species came named named sanctioned given sanctioned volume specific reference generic oak number authors including reclassified 19th century reclassified placed transferred species newly described genus declaring type species despite subsequent attempts currently description produces fruit bodies vary appearance depending wet dry thick form irregular patches measure centimetres initially species forms small disc shaped fruit bodies holes bark expand merge form irregular patches fresh surface reminiscent wax smooth varying colour dull blue initially firmly attached wood growing dry edges roll reveal dark brown black underside dry specimens slightly surface colour bright pink grey relatively thick layer gelatinous flesh apart brown layer close wood flesh hyaline species distinctive taste microscopic features produces spores shape curved cylinder shaped variously reported light red pink white measure spores borne basidia spores measure species hyaline cystidia thick cell walls heavily material cystidia buried fruit body grows found large numbers variously described shaped conical measure hyphae clamp connections base fruit body brown hyphae moderately thick cell walls measuring width similar species similar appearance edges fruit body highlighted dark black species ash opposed oak ecology distribution typically grows dead wood attached tree fallen causes white oak found deciduous trees beech known pioneer species dead wood means species grow found europe common encountered year produces spores late summer autumn recorded eastern asia species identified living time probable waits wood begins die drier contains oxygen begin grow species living wood grow wound species spread dead wood study found species actively partially living branches causing white species little effect limited ends branches
Peniophora quercina