13/Sep/25, 3:00 PM
Raudoja veehoidla, Raudoja, Harjumaa, Eesti
Mixed forest near lake, on fallen dead spruce tree trunk
59°22’45.4”N 25°28’58.9”E
🌡️ 18°C 🌦️ Partly sunny, after heavy rains
Original Instagram postLentinellus ursinus
bear lentinus
- Scientific identification
- Lentinellus ursinus (Fr.) Kühner
- Family
- Auriscalpiaceae
- Class
- Agaricomycetes
- Genus
- Lentinellus
Names across languages
- English: bear lentinus
- German: Geschichteter Zähling
- Finnish: Otsonsahaheltta
- Estonian: Karulentinell
- Russian: Пилолистничек медвежий
The scientific profile
From the latest record: 2025-09-13.
Hymenium
Gills radiating from point of attachment, close to nearly crowded, gill edges coarsely serrated or saw-toothed, often irregular and torn
Cap
Semi-circular to kidney-shaped, surface tomentose or velvety (especially toward center), darker brown at center fading toward margin, margin rolled under or lobed
Hymenium Attachment
N/A
Stipe
Absent, fruiting bodies sessile or lateral on wood substrate
Spore print
Spore print white
Ecology
Saprobic on decaying hardwood or conifer wood, grows clustered, overlapping shelves on logs or stumps, summer through autumn
Edibility
Inedible, extremely bitter and acrid, not poisonous
Fruit body
Fruit body size small to medium
Dimensions
Cap 2.5–10 cm diameter
Chemical reactions
Fresh cap surface usually KOH negative, dried flesh strong amyloid reaction with Melzer’s reagent
Odour
Fragrant
Taste
Strongly acrid, peppery
Microscopy
Spores ellipsoid, 3–4 × 2–3 µm, sparsely, finely spiny, strongly amyloid, basidia 18–20 × 3–4 µm, clavate, 4-sterigmate, pleurocystidia 22–30 × 4–6 µm, fusiform or cylindric
Overview
Bitter, wood-decaying shelf fungus with a brownish cap and saw-toothed pale gills
1926). Botaniste 17(1-4): 99.
Field encounters
Source hashtags
#hongos #lentinellusursinus #lentinellus #bearlentinus #larulentinell #lentinell #otsonsahaheltta #geschichteterzähling #zähling #mushroomphoto #fungiphoto #fungimacro #naturephotography #seenefotod #pilzefotografieren #фотогрибов #sieniäkuvia #houby #mycology #fungistudy #woodfungi #mushroom #fungi #auriscalpiaceae #seened #pilze
Back to the collection · Photography and field notes by @fungarium.info