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14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

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Sur écorce de Hêtre
Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

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Pyrenomycetous fungi on dead Juniperus twig
Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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Octospora
Charles Aron Charles Aron

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Auda con esta
Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

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Ascomycota
David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

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Sur Osmunda regalis
Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

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Black thready anamorph
Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

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Ascomycete on a herbaceous stem.
Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

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Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes, 14-07-2025 13:37
Hi,

do you think this collection could be R. ulmariae? It grows on leaves and petioles of Saxifraga rotundifolia. Ascospores measure around 12.8-14.8 x 4.5-5.0 µm. Croziers are present.

Best wishes,
Gernot
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Hans-Otto Baral, 14-07-2025 15:35
Hans-Otto Baral
Re : Rutstroemia ulmariae(?) on Saxifraga rotundifolia
It looks really very similar. Typically R. ulmariae has olive-grey-brown apothecia and occurs also on Potentilla, but 3x found with brown apos on the type substrate.

There exists an ITS sequence (KL462), presumably from Filipendula, but I do not have it.
Gernot Friebes, 14-07-2025 15:37
Re : Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Thank you, Zotto!