On Betula branch? - Forum ASCOFrance

09-11-2025 13:20

Ascomycete on Rubus.

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Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium

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Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Allophylaria subliciformis?

Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Leptosphaeria?

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Hello.Very small, globose, mucronate perithecia, b

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Mollisia sur Pinus

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Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Hymenoscyphus sp?

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Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Cladosporium ?

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.

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Protounguicularia transiens?

Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Tatraea sp. ? on Populus tremula

Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

On Betula branch?

Margot en Geert Vullings, 21-03-2023 09:37

On the same betula branch as of the Trimmatostroma we saw very small black fungi, about 1 mm.

We do not find what this could be?

Thanks in advance.

Enrique Rubio, 21-03-2023 10:31

Re : On Betula branch?

Hi Margot
Maybe Stomiopeltis betulae?
https://www.centrodeestudiosmicologicosasturianos.org/?p=27034

Margot en Geert Vullings, 21-03-2023 11:34

Re : On Betula branch?

That was also our thought, we looked at approved sightings and saw asci narrower than we see and the spores more pointed. On your site it fits wel, thanks a lot Enrique.

Margot

Enrique Rubio, 22-03-2023 10:28

Re : On Betula branch?

I think it would be good if the fruiting body is really a tyriothecium. Maybe a very shallow horizontal section would help you.

Margot en Geert Vullings, 22-03-2023 16:24

Re : On Betula branch?

My apologies, but I cannot find on the internet what tyriothecium is. I have very little knowledge of Ascomycetes. What should i see? Like on your site the first picture at the bottom?

Enrique Rubio, 22-03-2023 16:57

Re : On Betula branch?

yes, Margot, something like this