11/Oct/2026, 12:11 PM
Kadrioru park, Tallinn, Harju, Eesti
Urban city park, oaks grove, on fallen Quercus robur branch
59°26'22.5"N 24°47'41.7"E
🌡️ 11°C 🌤️ Passing clouds 💨 Wind 100° E->W, 11 km/h
Original Instagram postDaedalea quercina
Oak Mazegill
- Scientific identification
- Daedalea quercina (L.) Pers.
- Family
- Fomitopsidaceae
- Class
- Agaricomycetes
- Genus
- Daedalea
Names across languages
- English: Oak Mazegill
- German: Eichen-Wirrling
- Finnish: Sokkelokääpä
- Estonian: Tammekakk
- Russian: Дедалея дубовая
The scientific profile
From the latest record: 2026-10-11.
Hymenium
Pores large, elongated, winding and labyrinthine, sometimes gill-like; thick blunt walls ~1–3 mm wide; whitish to pale cream when young, becoming ochre-buff; not bruising
Cap
Semicircular to fan- or shelf-shaped, broadly attached; surface uneven, sometimes concentrically zoned, smooth to finely velvety; whitish, greyish-buff, ochre-brown to dark brown with age; margin thick, rounded and often paler
Hymenium Attachment
Maze-like pore surface covers the underside of the bracket
Stipe
Absent; fruit body sessile, broadly attached to wood
Spore print
Spore print white
Ecology
Saprobic, causing brown rot on dead hardwood (Quercus); fallen branches, trunks, stumps and standing dead wood; solitary or in overlapping groups; perennial, visible year-round
Ecology
Inedible; extremely tough, corky and woody
Fruit body
Fruit body medium to large
Dimensions
Cap width ~4–20 cm, thickness ~2–8 cm
Flesh
Whitish to pale ochre-brown, thick, corky to woody, unchanging when cut
Chemical reactions
KOH dark grey to black on cap, hymenium and flesh
Odour
Faintly acrid, mushroomy
Taste
Indistinct
Microscopy
Spores cylindrical to ellipsoid, smooth, hyaline, inamyloid, ~5–7 × 2–4 µm; basidia 4-spored
Overview
Thick oak bracket with distinctive labyrinthine pores and a black KOH reaction
1801). Syn. Meth. Fung. (Göttingen) 2: 500.
Field encounters
Source hashtags
#daedaleaquercina #mushroomphotos #fungimacro #mazegill #naturephotography
Back to the collection · Photography and field notes by @fungarium.info