Tubifera ferruginosa

Alternative names
Red Raspberry Slime
Tubifera arachnoidea
Tubulifera arachnoidea

Fruit bodies of the slime mould Tubifera arachnoidea are crowded together and compressed, starting red in colour and forming raspberry like clusters. Individual fruit bodies are less than 0.5 mm wide and are up to 3 to 5 mm high. Compressed clusters can be up to 15 cm or more in length. The cluster soon matures into a purplish and then brownish mass at maturity.  

Identification difficulty

Fruiting on dead wood.

When to see it

June through to November.   

UK Status

Widespread in Britain, though only occasionally encountered.

VC55 Status

Infrequently recorded in Leicestershire and Rutland.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Species group:
Slime Moulds
Records on NatureSpot:
First record:
14/09/2017 (Smith, Ann)
Last record:
06/11/2023 (Wright, David)

Total records by month

% of records within its species group

10km squares with records

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