18/Oct/2025, 2:18 PM
Kadrioru park, Tallinn, Harjumaa, Eesti
Urban park, inside old hardwood decaying stump wood
59°26'23.1"N 24°47'46.2"E
🌡️ 6°C ⛅ Passing clouds 💨 Wind 70° ENE->WSW, 9 km/h
Original Instagram postPleurotus ostreatus
grey oyster mushroom
- Scientific identification
- Pleurotus ostreatus (Jacq.) P.Kumm.
- Family
- Pleurotaceae
- Class
- Agaricomycetes
- Genus
- Pleurotus
Names across languages
- English: grey oyster mushroom
- German: Austern-Seitling
- Finnish: Osterivinokas
- Estonian: Austerservik
- Russian: Вёшенка обыкновенная
The scientific profile
From the latest record: 2025-10-18.
Hymenium
Gills, crowded, initially white to cream, becoming more pale-yellow or buff with age
Cap
Fan- to oyster-shaped, sometimes broadly convex or nearly flat in crowded clusters, margin lobed or wavy, surface smooth, velvety when fresh, colour white/grey/tan
Hymenium Attachment
Adnate to decurrent
Stipe
Often short, lateral or eccentric, sometimes almost absent, white to pale, solid, may be offset or thin
Spore print
Spore print white
Ecology
Saprobic on dead or dying wood of hardwoods (logs, stumps, trunks), shelf-like clusters, year-round
Edibility
Choice edible, widely cultivated and culinary valued
Fruit body
Fruit body medium to large
Dimensions
Cap ∅ 5–25 cm
Flesh
Flesh white, firm, unchanging in colour when cut
Chemical reactions
No major reagent reaction
Odour
Faintly almond-like
Taste
Pleasant
Microscopy
Spores smooth, ellipsoid to broadly ellipsoid, ~8–12 × 3–4 µm, basidia 4-sterigmate, clamp connections present
Overview
Prominent wood-decaying agaric that forms broad, shelf-or fan-shaped caps clustered on dead hardwood logs or tree stumps
1871). Führ. Pilzk. (Zerbst): 104.
Field encounters
Source hashtags
#hongos #pleurotusostreatus #pleurotus #oystermushroom #austerservik #servik #osterivinokas #austernseitling #seitling #mushroomphoto #fungiphoto #fungimacro #naturephotography #seenefotod #pilzefotografieren #фотогрибов #sieniäkuvia #houby #mycology #fungistudy #mushroom #fungi #woodfungi #pleurotaceae #pilze
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