Pleurotus dryinus
Berindeter oyster ( Pleurotus dryinus )
The barkringed Seitling called ( Pleurotus dryinus ), and Ringed or oak oyster, a species of fungus in the family is Seitlingsverwandten ( Pleurotaceae ). He is, together with the Beschleierten Poplar oyster ( P. calyptratus ) in the subgenus Lentidiopsis counted, which is characterized by a delicate veil in young fruit bodies. The specific epithet comes from the Greek word dryinus δρύϊνος and called " oaks ".
Features
The fruiting bodies of the bark at sideways are usually solitary, the edge of young specimens is long rolled up and hung with delicate velum. The fruiting bodies are whitish colored, later yellowish, covered with a brownish- gray, aged outbreaks of Hyphenfilz, which forms a relatively coarse bark ( hence the name ). The fungi yellowing during drying and to print something. The remotely located, far lolly run-down fins are white, sometimes forked and partially form cross-links. The whitish- cream colored handle is usually eccentric, is short ( 20-60 mm long and 10-40 mm wide) and covered with a white felt.
In North Africa, the growing on stumps of Atlas cedar variety uteosaturatus is described with bright yellow-colored stem, fins and meat ( Krieglsteiner quoted by Malencion ).
Artabgrenzung
Closely related is the rare Beschleierte Poplar oyster ( P. calyptratus ), which differs by larger spores from oyster with bark and grows exclusively on poplars.
Ecology
The barkringed Seitling is a weak parasite of deciduous and coniferous trees, which produces an intense white rot and its host slowly bring to the death, and after the death of the host still can live for a time as Saprobiont. It occurs in different types of forests, especially on forest edges and forest roads. Krieglsteiner draws particular attention to the frequent occurrence in parks, along roads and streams and in orchards.
Dissemination
The barkringed Seitling occurs in the Holarctic region and in the northern subtropics in Europe, North Africa, Asia, Central and North America. In Germany it is used in different densities throughout the area.
Importance
The barkringed Seitling is not edible mushroom; a tree and timber pest he is rather insignificant.