Ruzenia spermoides
Ruzenia spermoides has tightly packed clusters of smooth, black, almost spherical perithecia, often in large groups on rotten wood. Both There are other similar species and detailed examination is needed.
There are many similar species
microscopy 
Photograph the fungus on the substrate, and note habitat and substrate in your comments. We recommend that this is verified by an expert from a specimen before submission to Naturespot.
Rotten wood
Graham Calow
Burbage Wood
26 March 2018
det. R Iliffe from specimen
Graham Calow
Burbage Wood
26 March 2018
det. R Iliffe from specimen
Graham Calow
Burbage Wood
26 March 2018
det. R Iliffe from specimen
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
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Species profile
- Species group:
- fungus
- Kingdom:
- Fungi
- Order:
- Sordariales
- Family:
- Helminthosphaeriaceae
- Records on NatureSpot:
- 4
- First record:
- 26/03/2018 (Calow, Graham)
- Last record:
- 21/11/2025 (Cann, Alan)
Total records by month
% of records within its species group
10km squares with records
The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.
Latest images
Latest records
AJ Cann
Narborough Bog
21 November 2025
AJ Cann
Narborough Bog
21 November 2025
AJ Cann
Narborough Bog
21 November 2025
