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28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

29-04-2026 08:01

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig attached to small tree of Citrus auran

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

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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.