22/Sep/2026 (🌅🌇), 4:13 PM
Soodla forest, Raudoja, Harju, Eesti
Mixed forest woodland edge, forest road, on dead wet decayed birch log
59°23'04.6"N 25°24'06.0"E
🌡️ 14°C 🌤️ Scattered clouds 💨 Wind 30° NNE->SSW, 20 km/h
Original Instagram postStereum subtomentosum
Yellowing Curtain Crust
- Scientific identification
- Stereum subtomentosum Pouzar
- Family
- Stereaceae
- Class
- Agaricomycetes
- Genus
- Stereum
Names across languages
- English: Yellowing Curtain Crust
- German: Samtiger Schichtpilz
- Finnish: Leppänahakka
- Estonian: Lehviknahkis
- Russian: Стереум нежновойлочный
The scientific profile
From the latest record: 2026-09-22.
Hymenium
Smooth, without pores or gills; pale cream, buff to ochraceous; fresh surface characteristically stains bright yellow when scratched or bruised
Cap
Fan- to semicircular, thin and leathery, overlapping in tiers; concentrically zoned grey-yellow, ochre, buff to pale brown; finely velvety to tomentose, sometimes greenish from algae with age; margin thin and wavy
Hymenium Attachment
Smooth fertile surface covers the underside
Stipe
Absent; usually attached by a relatively narrow lateral base
Spore print
Spore print white to very pale brown
Ecology
Saprobic, causing white rot on dead hardwood trunks and branches; overlapping clusters; fruit bodies persistent year-round, sporulating summer to autumn
Ecology
Inedible; tough, leathery and tasteless
Fruit body
Fruit body small to medium; flesh ~1–2 mm thick
Dimensions
Cap width ~3–7 cm
Flesh
Beige to ochraceous, thin, tough and leathery; fertile surface bruises distinctly yellow
Chemical reactions
No macroscopic reagents reaction
Odour
Indistinct
Taste
Tasteless
Microscopy
Spores cylindrical to narrowly ellipsoid, smooth, hyaline, amyloid, ~5.5–8 × 2–3 µm; basidia 4-spored; thick-walled pseudocystidia present;
Overview
Zoned velvety hardwood curtain crust with a yellow-bruising smooth underside
1964). ČEská Mykol. 18(3): 147.
Field encounters
Source hashtags
#stereumsubtomentosum #mushroomphotos #fungimacro #yellowingcurtaincrust #naturephotography
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