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03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

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

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

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Yellow disc on pinus
Margot en Geert Vullings, 11-03-2024 19:22
Lying on a debarked pine branch in a heathland we found these sessile yellow fungi. When young they are discs that resemble an Orbilia, when they get older they become somewhat irregular lumps that are grainy and you think more of Mollisia-like.

Spores apple seed-shaped, measured in water:
(8.3) 8.7 - 10.5 (11.2) × (2.6) 2.8 - 3.5 (4.1) µm
Me = 9.7 × 3.2 µm ; Qe = 3

Asci Lugol +, croziers +
(54.2) 54.25 - 65.7 × (6.8) 6.85 - 8 µm
Me = 60 × 7.4 µm ; Qe = 8.1


Paraphyses, septate, branched and at least upper part granulated.


What genus could this be?
Thanks in advance, Margot&Geert

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Hans-Otto Baral, 11-03-2024 20:35
Hans-Otto Baral
Re : Yellow disc on pinus
I think we need the excipulum. The apos are up to 1 mm?

There is a white form of Durella suecica as I remember.
Margot en Geert Vullings, 12-03-2024 19:29
Re : Yellow disc on pinus
Thank you for the reply.

The discs are 1 to 1.5 mm in diameter.

We tried to make a section of a disc and numbered the different structures in the overview photo.
The numbered structures can be seen in the detail photos.
In the overview photo it looks like there is an algae layer under the disc, this algae layer is also next to the discs.
Hopefully it's that clear.
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Hans-Otto Baral, 12-03-2024 21:22
Hans-Otto Baral
Re : Yellow disc on pinus
Interesting! This rules out my idea. At the moment I am helpless.

Calycina ("Pezizella") pulvinata (folder Antinoa-like) might be similar but is on pine needles.
Margot en Geert Vullings, 12-03-2024 21:59
Re : Yellow disc on pinus
It will remain uncertain, thanks for your help.