Oak Blackhead - Diatrypella quercina
The fruitbodies are erumpent, emerging from under the bark of oak twigs. The surface is covered in pimples, which are the ostioles or projecting mouths of the spore-producing perithecia inside the fruitbody.
Very similar barkspots occur on other species of deciduous tree
host 
Good field photos, and you must identify species of host tree
On dead oak branches.
All year round.
David Nicholls
Groby
21 March 2014
det. P Thompson
David Nicholls
Groby
21 March 2014
det. P Thompson
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Species profile
- Common names
- Oak Blackhead
- Species group:
- fungus
- Kingdom:
- Fungi
- Order:
- Xylariales
- Family:
- Diatrypaceae
- Records on NatureSpot:
- 16
- First record:
- 11/11/2012 (Nicholls, David)
- Last record:
- 31/01/2026 (Bell, Melinda)
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% of records within its species group
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