06/Mar/2026, 3:05 PM
Kadrioru park, Tallinn, Harju, Eesti
Urban park, under old Alder trees, on catkins, wet soil, melting snow
59°26'29.0"N 24°47'31.6"E
🌡️ 9°C ☀️ Clear sky, sunny 💨 Wind 220° SW->NE, 17 km/h
Original Instagram postCiboria amentacea
Catkin cup
- Scientific identification
- Ciboria amentacea (Balb.) Fuckel
- Family
- Sclerotiniaceae
- Class
- Leotiomycetes
- Genus
- Ciboria
Names across languages
- English: Catkin cup
- German: Erlenkätzchen-Becherling
- Finnish: Norkkopikari
- Estonian: Lepa-urvaliudik
- Russian: Цибория сережчатая
The scientific profile
From the latest record: 2026-03-06.
Hymenium
Cup-shaped, often irregular, with a smooth or finely wrinkled inner surface. Typically orange to reddish-brown in color.
Cap
Cup-shaped, with a smooth or finely hairy surface. Colors vary from orange to brown.
Hymenium Attachment
Not applicable, as this species forms cup-shaped fruiting bodies.
Stipe
Absent or rudimentary, not distinct from the cap.
Spore print
Spore print white.
Description
Saprobic, commonly found on catkins (amenta) of various deciduous trees, particularly alders.
Edibility
Not typically considered edible.
Fruit body
Cup diameter ranges from 0.5-2 cm.
Microscopy
Spores are elliptical to oblong, smooth, 7-10 x 4-6 µm.
Odour
Not distinctive.
Overview
Characterized by its small cup-shaped fruiting bodies, often found on alder catkins in early spring. The cups may vary in color from orange to reddish-brown, and they contribute to the decomposition of organic matter.
1870). Jb. Nassau. Ver. Naturk. 23-24: 311 (’1869-70′).
Field encounters
28/Mar/24, 2:00 PM
Kadriorg park, Tallinn. Estonia.
Forest park zone, on fallen alder catkin.
59°26'27.7"N 24°47'27.0"E
🔆 Still sunny weather, no overcast.
Original Instagram post4/02/23, 3:56 PM
Kadriorg park, Tallinn. Estonia.
decidious damp park/forest (alder, hazel, oak)
🔆 Auto WB, sunny weather, partial shade, sunny spot
Original Instagram post3/18/23, 2:44 PM
Kadriorg park, Tallinn. Estonia
decidious damp park/forest (alder, hazel, oak)
N 59° 26' 28.698" (59.441305), E 24° 47' 31.363001" (24.792045)
🔆 forced daylight (sunny weather)
Original Instagram postSource hashtags
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