Oak Pin - Cudoniella acicularis

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Description

A small long-stemmed slightly downy white fungus with a convex hymenium (fertile surface) and thick stalk, usuallly in clusters on mossy oak stumps.  With age it becomes brownish and spotted with black

Identification difficulty
Recording advice

Photograph in habitat; note substrate and associated tree species.  

Habitat

Old oak stumps and logs, often mossy

When to see it

Autumn to early winter.

  • Melinda Bell
    Charley Woods
    15 November 2023
  • Melinda Bell
    Whitwick,Holly Hayes Wood
    15 October 2024
  • David Nicholls
    Martinshaw Wood
    12 December 2013
  • AJ Cann
    Ulverscroft
    07 November 2023
  • Melinda Bell
    Charley Woods Nature reserve
    22 October 2020
    tiny fruiting bodies
  • Melinda Bell
    Charley Woods Nature reserve
    22 October 2020
    older ones go brown and spotty
  • sue
    Grace Dieu Wood
    29 January 2025
  • David Nicholls
    Swithland Wood
    11 November 2012
  • AJ Cann
    Ulverscroft
    07 November 2023
  • sue
    Grace Dieu Wood
    29 January 2025
  • Melinda Bell
    Whitwick,Holly Hayes Wood
    15 October 2024
  • Melinda Bell
    Charley Woods Nature reserve
    22 October 2020

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species data profile ?

Species profile

Common names
Oak Pin
Species group:
fungus
Kingdom:
Fungi
Order:
Helotiales
Family:
Tricladiaceae
Records on NatureSpot:
16
First record:
04/11/2012 (Nicholls, David)
Last record:
13/12/2025 (Bell, Melinda)

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

  • David Nicholls
    Martinshaw Wood
    12 December 2013
  • David Nicholls
    Cademan Wood
    04 November 2012
  • Melinda Bell
    Charley Woods
    21 December 2022
  • David Nicholls
    Cademan Wood
    04 November 2012