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12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

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Mollisia discolor?
Riet van Oosten, 03-11-2023 14:23
Riet van Oosten
Hello,

Found by Laurens van der Linde, 26-10-2023 on Cornus.

Very small fruitbodies, is this Mollisia discolor?

- KOH reaction yellow

- Asci with croziers

- IKI+

- spore sizes Me: 12.3 x 2.7 µm

Greetings, Riet
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Hans-Otto Baral, 03-11-2023 15:54
Hans-Otto Baral
Re : Mollisia discolor?
I used discolor for a species with biguttulate spores, the LBs in the middle of each half, and KOH negative reaction. Not sure what this is. The spores are surely ejected when non-septate but how is the spore range and how the size of the asci (either living or dead)?

Is this a corticated twig as it looks-like or is it bare wood?

The branch was on the moist ground?

The apos on the first photo look like up to 0.5 mm at least, but the scale is on a photo with only a few perhaps much smaller apos. In fact, photos 4-5 show that the apos are up to 0.5 mm which is a medium size in Mollisia.
Riet van Oosten, 03-11-2023 17:45
Riet van Oosten
Re : Mollisia discolor?
Got a message from Laurens: the twig was corticated (fresh bark) and connected to a group of branches (it is a young tree) about 1.5 m from the ground, the apos grew together with Encoelia fuckelii.
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Hans-Otto Baral, 03-11-2023 20:25
Hans-Otto Baral
Re : Mollisia discolor?
This is good. Anyway, Mollisia is extremely difficult and it is advisable to obtain a sequence. Did you test Andreas' key?

The asci are all dead on the photos, for living asci one must multiply the values by perhaps 1.2x. Spore size is the same in H2O and CR but I assume both cases refer to living spores, dead spores are usually distinctly smaller (e.g. in MLZ).

The species could be drought-tolerant, considering its habitat.

I have not the time to scroll through my folders, there are many species , some folders have data on spore size and KOH-reaction.
Riet van Oosten, 03-11-2023 20:36
Riet van Oosten
Re : Mollisia discolor?
Thank you very much for your help Zotto!

This weekend I will scroll your folders and try the key!
Riet van Oosten, 06-11-2023 18:13
Riet van Oosten
Re : Mollisia discolor?
With Andreas' key (2008) I soon end up with Mollisia prunicola .......

7a: marginal cells very conspicious, blackish-brown, evidently > 50 µm, and mostly encrusted and KOH-reaction always strongly lemon-yellow.

8b: sp 9-14 x 2.2-3 µm, oil 3-4, asci with croziers on Prunus spinosa = M. prunicola

(The apos grew together with Encoelia fuckelii/Xeropilidium dennisii)
Hans-Otto Baral, 06-11-2023 21:19
Hans-Otto Baral
Re : Mollisia discolor?
Surely this is no option.

So the branch was exposed when there was Xeropilidium.
Riet van Oosten, 07-11-2023 15:12
Riet van Oosten
Re : Mollisia discolor?
Laurens van der Linde: they were quite close together (10-20 cm distance) and on the same side of the twig.

Next time Laurens will check if there are any fruitbodies still present.