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12-01-2026 22:02

Coryneum (?) acervuli on oak (?) branch
Ethan Crenson

Hello all, I am hoping someone will have some ins

11-01-2026 20:35

Pyrenomycete on Conifer Wood
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Hello.A very tiny pyrenomycete sprouting sparsely

13-01-2026 18:55

Strossmayeria sp. on indet. decroticate hardwood
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13-01-2026 07:57

cf. Bombardia on indet. decorticate wood - 304222307
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cf. Bombardia on indet. decorticate woodAppalachia

13-01-2026 10:13

Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
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Neodasyscypha cerina on indet decorticate log - 303463318
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Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 09:10

Dasyscyphella chrysotexta on indet. decorticate hardwood - 303900282
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Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 08:43

Tricladium varicosporioides on indet. decorticate stick - 303997395
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Tricladium varicosporioides on indet. decorticate

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Coccomyces sp. on fallen Rhododendron leaves - 305874978
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Coccomyces sp. on fallen Rhododendron leavesPretty

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Black with a mycelium.
Per Marstad, 27-02-2019 11:16
Per MarstadI have found this in Norway, on Fraxinus excelsior, growing on a bed of mycelium.
Spores 27-28 x 6-8 my, with 3 segments.
I would like to have a name.
Per.

  • message #56514
  • message #56514
Lothar Krieglsteiner, 27-02-2019 11:28
Lothar Krieglsteiner
Re : Black with a mycelium.

Hello Per,


macroscopically this looks much like Chaetosphaerella phaeostroma.


The single spore (is it an ascospore?) could fit, too (but are a bit short) - 3 septa, end cells hyaline.


Best regards, Lothar

Per Marstad, 27-02-2019 11:44
Per Marstad
Re : Black with a mycelium.
In the description in Fungi and Lichens of Great Britain and Ireland tha size of the ascospore is (22-) 31-36 x 6-9 my and the form is exactly like my picture, so your determination is right, I think. Thank you.
Per.