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Daedalea quercina
''Daedalea quercina'' is a species of mushroom in the Polyporales order. It is the type species of the genus ''Daedalea''. Commonly known as the oak mazegill or maze-gill fungus, the specific epithet refers to the oak genus ''Quercus'', upon which it frequently grows, causing a brown rot. It is found in Europe, Asia, Northern Africa and Australasia. Though inedible, it can be used as a natural comb and has been the subject of chemical research.
==Description==
The sessile, fan-shaped fruiting bodies are typically in diameter and up to thick. They are found singly or in tiered groups, usually on rotting oak. The upper surface of the cap may be various shades of brown, and is sometimes zonate. The pore surface, white to tan in color, is initially porous, but as the fruit body matures, some of the pore walls break down, forming slits with blunt partitions. This results in the characteristic maze-like (daedaloid or labyrinthinine/labyrinthiform) appearance. The tube walls are 10–30 mm long, with thick walls. The basidiospores are 5–7 × 2–4 µm, smooth, and elliptical in shape. In deposit the spores are white.
This mushroom is inedible due to its cork-like texture.
A variant has been described that has large, angular pores similar to those in the genus ''Trametes'', named ''D. quercina'' forma ''trametea''.〔Schanzle RW. (1973). "''Daedalea quercina'' forma ''trametea'' in Illinois." ''Mycologia'' 65(3): 689–690.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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