Auricularia mesenterica

Tripe fungus

The fruiting bodies are cap-shaped with undulate edges, 4–15 cm across, 1–5 cm deep and 0.2–0.5 cm thick. They are laterally attached to the substrate and usually form dense tiers of overlapping brackets. The upper surface of the caps is coarse, hairy, ochre-yellow, zoned in rusty brown or olive green centered stripes, with the lobed edges coloured pale or whitish grey. The hymenium has a shape of tangled gelatinous veins, most often of greyish purple colour. When fresh, the flesh is gelatinous, but gets very hard in dry specimens; the upper side of the cap is leathery. The mycelium causes white rot of wood.

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Symptom

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Presence of ocher-yellow to whitish folded capped fruiting bodies, with a wavy edge.

Tree Species: Elm, Ash

Part of a plant- attacked: Tree trunk

Pest significance: Less harmful

Pest Category: Fungi

Invasive Species: No

Present in EU: Yes

Pest group: Fungi

Affected part of wood: Heartwood, Sapwood

Depth of damages: More than 5 cm depth, Under bark only, Up to 0,5 cm depth, Up to 2 cm depth, Up to 5 cm depth

The extent of damage: Whole trunk

Prevalence in Europe: Very common

Damaged products: Firewood, Fresh timber logs (water still in the sapwood), Furniture, Lumber, boards and prisms, Wood chips, Wooden house constructions

Roundwood size: Diameter from 10 up to 50 cm

Wood discoloration: Yes

Pest subcategory: White-rot