Oak sponge

Oak sponge (Daedalea quercina) Oak sponge (Daedalea quercina) Oak sponge (Daedalea quercina)

Oak sponge (Daedalea quercina)


  • Department: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Class: Agaricomycetes (Agaricomycetes)
  • Subclass: Incertae sedis (undefined)
  • Order: Polyporales
  • Family: Fomitopsidaceae (Fomitopsis)
  • Genus: Daedalea (Daedalea)
  • Species: Daedalea quercina (Oak sponge)

Oak sponge

Hat: The Oak Sponge Hat grows to an impressive size. Its diameter can reach ten to twenty centimeters. The hat has a hoof shape. The upper side of the cap is painted white-gray or light brown. The surface of the cap is uneven; there is an external, prominent, thin edging. The cap is bumpy and rough, with concentric grooves in a woody color.

Flesh: The flesh of the Oak Sponge is very thin, corky.

Tubular layer: the tubular layer of the fungus grows in thickness up to several centimeters. The pores are barely visible, visible only along the edges of the cap. Painted in a pale woody color.

Distribution: Oak Sponge is predominantly found on oak trunks. Sometimes, but rarely, it can be found on the trunks of chestnuts or poplars. Fruiting all year round. The mushroom grows to enormous size and grows over several years. The fungus is common in all hemispheres, it is considered the most common species. It grows wherever there are suitable conditions. On living trees, it is very rare. The fungus causes the formation of sound brown rot. Rot is located in the lower part of the trunk and rises to a height of 1-3 meters, sometimes it can rise up to nine meters. In forest stands, Oak Sponge does little harm. This mushroom causes more damage when storing felled wood in warehouses, in buildings and structures.

Similarity: Oak Sponge in appearance strongly resembles the same inedible mushroom – Tinder fungus. It is distinguished by the fact that the thin fruiting bodies of the Tinder fungus, when fresh, turn red when pressed. The mushroom is easy to recognize due to its characteristic place of growth (dead and living branches and stumps of oak), as well as the special, labyrinthine structure of the tubular layer.

Edible: the mushroom is not considered a poisonous species, but it is not eaten because it has an unpleasant taste.

Note: On old oak stumps grows a rather attractive Polypore, whose surface is painted in ocher color. Instead of pores, this fungus has elongated labyrinth-like cells, which is its main distinguishing feature. Large fruiting bodies, semicircular in shape, widely adherent to a warty or furrowed surface. In the middle, the fruit bodies are cork-shaped, yellow-ocher color. The mushroom has been growing for several years. It settles on dead trunks of oak, beech or chestnut. It can also grow on treated wood. The Oak Sponge is found everywhere, a common, common mushroom. Causes rapidly developing rot, brown color, which further disintegrates into radial plates.

Oak sponge (Daedalea quercina) Oak sponge (Daedalea quercina) Oak sponge (Daedalea quercina)

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Hunting, Fishing and Mushrooms: a magazine for hunters and fishers.
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