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23-10-2025 20:59

Patrice TANCHAUD

Bonsoir, est-ce que quelqu'un posséderait un com

24-10-2025 14:50

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025

24-10-2025 03:11

Francois Guay Francois Guay

I found this fungus growing on decaying conifer wo

20-10-2025 09:36

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for the following article:Bene

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

21-10-2025 23:13

F. JAVIER BALDA JAUREGUI

Hello to everyone.Did you think it could, be a pyx

22-10-2025 06:43

Ethan Crenson

Hi all, I'm having some difficulty with this Orbi

22-10-2025 14:45

Lukas Verboom

Dear all,I collected this in the Netherlands, on t

22-10-2025 11:13

Jean-Luc Ranger

Bonjour,  Petites boules plus ou moins sphériqu

21-10-2025 21:25

Philippe PELLICIER

Bonjour,J'ai récolté en septembre sur une litiè

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Phaeohelotium fulvidulum?
Jan Knuiman, 11-08-2023 11:27
Hello to all,

Fruit bodies were found on a dead Fagus leaf, were very short stiped and max 4 mm wide.
Spores in water measured 16 -22 x 3.5-5.0 micron. Asci (aboot 120 x 10 micron) without croziers. See pictures of ectal and medullary excipulum, spores and asci.

Could this be Phaeohelotium fulvidulum?

Kind regards, Jan
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Hans-Otto Baral, 11-08-2023 11:43
Hans-Otto Baral
Re : Phaeohelotium fulvidulum?
I tend to confirm but would prefer to see living paraphyses with their contents and the dead ascus apex in Lugol.
Jan Knuiman, 11-08-2023 12:57
Re : Phaeohelotium fulvidulum?
Hello Zotto,

Herewith some extra pictures of paraphyses in water and asci in lugol. Hope this helps.

Jan
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Hans-Otto Baral, 11-08-2023 18:04
Hans-Otto Baral
Re : Phaeohelotium fulvidulum?
The VBs in the paraphyses are fine, although I know them strongly refractive. The iodine photo is much too small, I wanted to see the shape of the blue ring.
Jan Knuiman, 11-08-2023 19:35
Re : Phaeohelotium fulvidulum?
Hello Zotto,

It looks to me that the blueing of the ascus top is weak if present at all. What do you think?
Jan
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Hans-Otto Baral, 11-08-2023 20:23
Hans-Otto Baral
Re : Phaeohelotium fulvidulum?
Indeed, this is only the inner part of the thickening where two blue lines are visible. Not really what I expected. Together with the faintly refractive paraphysis contents I am a but sceptical. I am not really sure with the absence of croziers. If present it could be P. monticola.
Patrice TANCHAUD, 11-08-2023 22:32
Re : Phaeohelotium fulvidulum?
Bonsoir,

si je ne me trompe pas, P. fulvidulum pousse plutôt dans les endroits humides ou marécageux, personnellement je ne le connais qu'en tourbières en milieu acide, il est de couleur ocre.

P. monticola est plus jaune, plus vivement coloré, mais je ne connais que son sosie, P. epiphyllum, et ici il semblerait difficile de trancher, non ? On manque d'information sur la réfringence des paraphyses à mon goût.

If I'm not mistaken, P. fulvidulum grows more in humid or marshy places, personally I only know it in peat bogs in an acid environment, it is ocher in color.
P. monticola is more yellow, more vividly colored, but I only know its look-alike, P. epiphyllum, and here it would seem difficult to decide, wouldn't it? There is a lack of information on the refraction of the paraphyses in my opinion.

Patrice
Hans-Otto Baral, 12-08-2023 21:07
Hans-Otto Baral
Re : Phaeohelotium fulvidulum?
There are some living paraphyses visible and they contain low-refractive medium-sized VB-guttules. P. epiphyllus I excluded as it has prominently multiguttulate VBs.

You are right. P. monticola is more yellow. It can be that the apical ring varies in P. fulvidulum.
Patrice TANCHAUD, 12-08-2023 22:04
Re : Phaeohelotium fulvidulum?
Oui, on voit quelques paraphyses, mais s'agissant d'un élément essentiel, en voir plus aurait été intéressant.

Yes, we can see a few paraphyses, but since it is an essential element, seeing more would have been interesting.