11/Oct/2026, 2:28 PM
Kloostrimets, Tallinn, Harju, Eesti
Urban city mixed forest (pine-mapple), on Ribes alpinum affected leaves
59°27'59.2"N 24°50'46.0"E
🌡️ 11°C ☁️ Overcast 💨 Wind 120° ESE->WNW, 13 km/h
Original Instagram postDrepanopeziza ribis
Blackcurrant leaf spot
- Scientific identification
- Drepanopeziza ribis (Rehm ex Kleb.) Höhn.
- Family
- Drepanopezizaceae
- Class
- Leotiomycetes
- Genus
- Drepanopeziza
Names across languages
- English: Blackcurrant leaf spot
- German: Blattfallkrankheit
- Finnish: Herukanvariste
- Estonian: Sõstra-lehevarisemistõbi
- Russian: Дрепанопецица смородиновая
The scientific profile
From the latest record: 2026-10-11.
Hymenium
Pale to medium grey fertile discs within minute dark apothecia, emerging through the epidermis of overwintered fallen leaves
Body
Tiny cup- to disc-shaped apothecia, initially immersed, later erumpent; asexual stage forming small greyish acervuli within dark brown, circular to irregular leaf spots, often surrounded by yellowing tissue
Description
Spore mass hyaline to whitish
Description
Parasitic on living leaves of Ribes species; causes anthracnose, leaf spotting and premature defoliation; overwinters saprobically on fallen leaves; airborne ascospores in spring, rain-splashed conidia during summer to autumn
Edibility
Inedible; microscopic plant pathogen
Fruit body
Microscopic; infected leaf spots usually ~1–2 mm across, sometimes merging into larger necrotic patches
Dimensions
Apothecia ∅ ~0.2–0.4 mm
Microscopy
Ascospores ellipsoid to ovoid, smooth, hyaline, aseptate, ~16–22 × 7–9.5 µm; asci clavate, 4–8-spored, ~65–105 × 18–21 µm, with iodine-blue apical ring; paraphyses filiform, slightly enlarged apically; macroconidia falcate, aseptate, ~17.5–24 × 5.5–7 µm; microconidia cylindrical, ~4–6.5 × 2–3 µm
Overview
Currant and gooseberry anthracnose fungus producing brown leaf spots and minute overwintering apothecia
1917). Annls Mycol. 15(5): 332.
Field encounters
Source hashtags
#drepanopezizaribis #mushroomphotos #fungimacro #plantpathogenfungi #naturephotography
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