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Polyporus squamosus

Dryad’s saddle

Description

It is parasitic on deciduous trees, especially elm, beech and sycamore, causing intensive white rot. It grows from spring to summer, annual. Bracket is 5–60 cm across, 0.5–5 cm thick, initially circular or fan-shaped, ochraceous- cream covered in concentric dark brown fibrillose scales. Stem is 30–100 × 20–60 mm, lateral or occasionally off-centre, blackish towards the base. Flesh is 1–3 cm thick, succulent when fresh, drying corky, white. It smells strongly of meat. Tubes are 5–10 mm long, decurrent down the stem, white to creamy. Pores are 1–3 × 0.5–1.5 mm, irregular and angular, whitish to ochraceous-cream. Spores are white, oblong-ellipsoid, 10–15 × 4–5 μm.

Symptom

Causes white rot of infested wood.

Tree Species: Maple

Part of a plant- attacked: Tree trunk

Pest significance: Harmful

Pest Category: Fungi

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 11 observations of the species in the system

Polyporus squamosusDryad’s saddle
valeria
Number of votes: 0
Published: 9.10.2025

Polyporus squamosusDryad’s saddle
Stanislava Kriekova
Number of votes: 0
Published: 17.9.2025

Polyporus squamosusDryad’s saddle
Bence Szekely
Number of votes: 0
Published: 11.11.2024

Polyporus squamosusDryad’s saddle
Bence Szekely
Number of votes: 0
Published: 11.11.2024

Polyporus squamosusDryad’s saddle
Bence Szekely
Number of votes: 0
Published: 11.11.2024