From the latest record: 2025-09-27.
Black, carbonaceous stromata, either crust-like patches or erumpent areas on bark of dead wood; often with a thin whitish entostroma below the surface.
Perithecia immersed to slightly erumpent, with small black ostioles breaking through the stromal surface.
N/A (ascomycete)
N/A
Spore print: N/A
Saprobic, primarily on dead or decaying hardwood branches, especially birch, alder, acer, occurs on dead bark
Inedible / microscopic
Dimensions stromatal patches variable, perithecial ostioles ~ tens to hundreds of micrometers in diameter
Microscopic features:
Asci: 8-spored asci
Ascospores: Allantoid (curved) spores, hyaline, ~ 3 × 15-18 µm
Stromatal structure: Stromata composed of ectostroma and entostroma, perithecia embedded within these layers
Wood-inhabiting ascomycete that forms black stromatal crusts on dead hardwood bark
1987). Mycol. Helv. 2(3): 502.
Laiaküla raba, Tallinn, Harju, Eesti
Deciduous boggy forest, on the bark of dead hardwood branch, with visible yellowish remnants of its asexual phase 'Libertella faginea'
59°28'02.9"N 24°53'25.6"E
🌡️ 14°C 🌤️ Passing clouds 💨 Wind 0° N->S, 13 km/h
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