Veiled Oyster

Pleurotus dryinus

''Pleurotus dryinus'' is a species of fungus in the family Pleurotaceae. It grows on dead wood and is also a weak pathogen; infecting especially broad-leaved trees.
Pleurotus dryinus This is a picture of Pleurotus dryinus on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland.
 Geotagged,Pleurotus dryinus,Summer,United States

Appearance

*The flesh may be monomitic but it may also be dimitic, having extra thick-walled hyphae which give the flesh a tough consistency.
⤷ The elongated spores in the form of a rounded cylinder are around 9-15 μm by 3-5 μm.
⤷ There are no cystidia.

Naming

The species name is a Latinised version of the Greek word "dryinos" , meaning "related to oak", which refers to one of its main hosts.

Distribution

Appearing from summer to autumn, it is distributed throughout Europe, where it varies locally between common and rare. It is also found in North America.

Habitat

This mushroom is saprobic on dead wood and can also be a weak parasite of trees. It occurs especially on oak , but also on beech, other broad-leaved trees, and occasionally on conifers. It is often solitary or may grow in small groups.

References:

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Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassAgaricomycetes
OrderAgaricales
FamilyPleurotaceae
GenusPleurotus
SpeciesP. dryinus