Durella on Quercus - Forum ASCOFrance

20-04-2023 15:56

Durella on Quercus

Juuso Äikäs

These little black ascos were growing on the upper

14-04-2023 21:29

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literature request

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me mandan elmaterial seco de Galicia (España) r

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Trichopezizella rubroguttata with intrahymenial Helicogonium

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Dear Forum,On a dead branch of Sambucus I found so

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Durella on Quercus

Juuso Äikäs, 20-04-2023 15:56

These little black ascos were growing on the upper side of a fallen, decorticated trunk of Quercus robur.

Asci 8-spored, with croziers, IKI+(bb). Paraphyses filiform at the lower part, swollen at the tip and glued together in bunches with some exudate. Spores 4-celled, with a large guttule in each of the cells, measuring 16 - 18.3 × 6.2 - 6.8 µm.

Could this pass as Durella melanochlora?

Hans-Otto Baral, 20-04-2023 17:07

Re : Durella on Quercus

I suppose yes. The size of the LBs in the spores appears to vary in this species.

Juuso Äikäs, 20-04-2023 17:22

Re : Durella on Quercus

OK; thanks for the conformation.

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