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Fomitopsis pinicola

red-belted conk

Fomitopsis pinicola — 2026-07-04
Scientific identification
Fomitopsis pinicola (Sw.) P.Karst.
Family
Fomitopsidaceae
Class
Agaricomycetes
Genus
Fomitopsis

Names across languages

  • English: red-belted conk
  • German: Rotrandige Baumschwamm
  • Finnish: Kantokääpä
  • Estonian: Kännupess
  • Russian: Фомитопсис окаймлённый

The scientific profile

From the latest record: 2026-07-04.

Hymenium

Pores round, whitish to pale yellowish, not strongly bruising; usually ~3–4 pores per mm, with distinct annual tube layers

Cap

Perennial bracket or hoof-shaped conk; hard, woody, semicircular to fan-shaped; zoned dark blackish near attachment, with orange-red varnished bands and a thick pale growing margin

Hymenium Attachment

N/A

Stipe

N/A

Spore print

Spore print pale yellow

Ecology

Saprobic, sometimes weakly parasitic, causing brown cubical rot on dead or living conifers and hardwoods; perennial, year-round

Ecology

Woody and inedible

Fruit body

Fruit body large, up to ~15 cm thick

Dimensions

Cap ∅ up to ~25–30 cm

Flesh

Flesh whitish to cream, leathery to woody, unchanging when cut

Chemical reactions

KOH flesh turns red to reddish-brown

Odour

Fagrant, sour when fresh

Taste

Indistinct to slightly bitter

Microscopy

Spores subellipsoid to oval, smooth, hyaline in KOH, inamyloid, ~6–9 × 3–4.5 µm; basidia 4-sterigmate; cystidia absent; hyphal system trimitic with clamped generative hyphae, skeletal hyphae and binding hyphae

Overview

Tough perennial red-belted bracket with pale pores, varnished orange-red marginal zones

1881). Meddn Soc. Fauna Flora Fenn. 6: 9.

Field encounters

04/Jul/2026, 2:56 PM

Kõrveküla, Lääne-Viru, Eesti

Conifer dominant forest, on fallen spruce trunk wood

59°14'11.6"N 25°39'14.6"E

🌡️ 19°C 🌥️ Passing clouds 💨 Wind 10° N->S, 7 km/h

Original Instagram post

29/Sep/24, 2:08 PM

Raudoja, Harjumaa, Estonia

Pine-spruce-birch forest, on spruce stump

59°23'15.9"N 25°24'05.2"E

🔆 Raining, storm clouds with sun rays, open spot

Original Instagram post

03/Aug/23, 6:24 PM

Treppoja Cascade, Kloogaranna, Harjumaa, Estonia

In mixed forest, on dead pine trunk in ground

59°21'02.7"N 24°15'57.6"E

🔆 Forest shade, with late evening sun

Original Instagram post

28/07/23, 7:51 PM

Tädu terviserada, Lubja, Harjumaa

In pine (Pinus sylvestris) forest, on dead pine trunk

59°31'08.3"N 24°54'06.4"E (59.518970, 24.901774)

🔆 Forest shade, with late evening partial sun

Original Instagram post

Source hashtags

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