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Yellowing Curtain Crust

Yellowing Curtain Crust

Stereum subtomentosum

Photo: Thierry Arbault

Habitat

Woodland

Occurs on the fallen or decaying wood of deciduous trees, with a specific affinity for sycamore and beech. Frequently found growing in large, fused clusters or groups.

Photos

Appearance

Fruit body
Semicircular to leafy brackets that attach to the substrate with a short, stalk-like base; often found fused together in large, wavy clusters.
Upper surface
Marked with concentric zones and initially covered in fine, woolly down; becomes smooth with age and is frequently colored green by algae, though the margin remains paler.
Underside
The surface is smooth to slightly warty and may crack when dry; it turns yellow when bruised in fresh specimens.
Flesh
White to ochre in color with a leathery and tough texture that becomes hard once dry.
Spore print
White.

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Edibility

Not edible

The yellow-bruising flesh of this species is described as leathery and becomes hard once it has dried.

Misidentification can be fatal. Never eat a mushroom unless you're 100% sure. This information may be inaccurate. Always consult multiple sources.

Nutrient Source

Saprotrophic

It decomposes dead hardwood, most commonly beech trees, by breaking down tough organic material.

Common Names

Danish
Smuk lædersvamp
Dutch
Waaierkorstzwam
English
Yellowing Curtain Crust
Finnish
leppänahakka
French
Stérée remarquable
German
Samtiger Schichtpilz
Norwegian Bokmål
viftelærsopp
Norwegian Nynorsk
viftelêrsopp
Swedish
sammetsskinn
Welsh
Crawen Gedennog