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08-12-2025 21:04

Mark Stevens

"Hello everyone,I'm relatively new to microscopy (

08-12-2025 21:18

Buckwheat Pete

Hello everyone, Is it possible to at least approx

08-12-2025 18:59

Lothar Krieglsteiner Lothar Krieglsteiner

.. found by a seminar-participant, I do not know t

07-12-2025 17:43

Malcolm  Greaves Malcolm Greaves

This Helvella was in mixed woodland. Uniform cupul

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

07-12-2025 16:07

Arnold Büschlen

Hallo, ich habe in einer Moos-Aufsammlung (epiphy

16-03-2014 22:00

Ralph Vandiest Ralph Vandiest

Hello,I found this species a few months ago but ha

08-12-2025 13:39

Thomas Læssøe

https://svampe.databasen.org/observations/10572899

07-12-2025 22:43

Andreas Millinger Andreas Millinger

Good evening, tried to determine with Munks Valsa

05-12-2025 17:33

Bruno Coué Bruno Coué

Bonjour, je serais heureux de recueillir votre avi

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Pyrenomycete with yellow stroma
Maren Kamke, 11-05-2013 10:45
Maren KamkeHello,
I need your help once more.
I found this fungus on phragmites sp. or some other gras. It grows in groups of up to 8 perithecia, up to 1x0,5mm with a white to ochre-yellow stroma. Spores are hyalin 21-31x6-7 µm (average 26x6,65 µm) with one septum. Asci 115x14 µm, IKL negative.
Thank you
Regards
Maren


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Alain GARDIENNET, 11-05-2013 10:54
Alain GARDIENNET
Re : Pyrenomycete with yellow stroma
Microscopy reminds me Massarina lacustris : http://www.ascofrance.fr/search_recolte/2547
But macroscopy doesn"t fit.
Alain
Jacques Fournier, 11-05-2013 14:27
Jacques Fournier
Re : Pyrenomycete with yellow stroma
Hi Maren,
I know a very similar fungus on submerged wood with soft black multilocular ascomata and pale orange contents. I mesured ascospores 29-34 x 7.5-8.5 µm?, hyaline, 1-3 septate, with a sheath, jus a bit over what you report. I have absolutely no idea in what genus of Pleosporales it might be accommodated.
Cheers,
Jacques