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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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Ombrophila violacea?
Marek Capoun, 26-11-2020 20:43
Marek CapounHello everybody, I need help with the determination of an Ombrophila on the fallen trunk (Alnus, probably, or Acer, maybe). Collected 1.11.2020, altitude cca 300 meters.
I thought it could be Ombrophila violacea or O. pura, but the ascospores are smaller than they should be.
Apos max. 6 mm on average, sessile or very shortly stalked, pink or rather pinkish white. Medullary excipulum gelified, in the tissue found conidiophores (really?). Ectal excipulum with text. prismatica (with incrustation?). Ascospores ellipsoid, (5.3) 5.7 - 6.6 (7.6) × (3.5) 3.7 - 4.1 (4.2) µm with 2 LBs and sometimes some others smaller.
There was some apos last year on that place too, on this same substrate and at the same time, but it was not examined by microscopy then.
Are such information and photos sufficient for a determination?
Thanks a lot.
Marek
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Hans-Otto Baral, 26-11-2020 22:16
Hans-Otto Baral
Re : Ombrophila violacea?
Yes, I guess this belongs in the scope of O. violacea. There are samples in my folder that are close: VII.2013 and IX.2014.

But I ask myself how heterogeneous this complex would be when sequenced.

There are no conidiophores in the medulla, this must be hyphae with exudate or crystal sheath.

Alnus and Acer are easily distinguished by wood anatomy.

Zotto
Marek Capoun, 26-11-2020 23:30
Marek Capoun
Re : Ombrophila violacea?
Dear Zotto, thanks for the post, confirmation and correction, and special thanks for placing my photos into your folders ;) Well, and I'm going to learn the anatomy of wood :))
Marek
Hans-Otto Baral, 27-11-2020 08:22
Hans-Otto Baral
Re : Ombrophila violacea?
Radial, tangential and cross sections would promptly show if it is Alnus or Acer or something else.