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29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

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Brown disc on soil
Margot en Geert Vullings, 02-04-2023 18:49
We found this 3mm brown asco with thick stem April 2, 2023 on sand among moss on sparse soil among pines.
Spores (16.6) 16.9 - 17.9 (18.8) × (6.2) 6.5 - 7.3 (7.5) µm
Q = (2.3) 2.31 - 2.7 (2.9) ; N = 10
Me = 17.4 × 6.8 µm ; Qe = 2.5
Ascus 165.1 × 10.6 µm
Asci after KOH and Melzers apical blue
Parafysen width 3.11 - 3.2 µm

What species could this be?

Thanks in advance

Margot&Geert
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Hans-Otto Baral, 02-04-2023 20:37
Hans-Otto Baral
Re : Brown disc on soil
I suppose it grew on some monocot but I am not sure. Rutstroemia calopus or R. paludosa (now both in Clarireedia), depending on the croziers.
Margot en Geert Vullings, 03-04-2023 21:55
Re : Brown disc on soil
We carefully detached the disc from sand with a fine needle and did not see that the disc was attached to anything.
There was some grass and moss growing, but no Carex in the area.
We think we saw croziers? So it would be R. calopus?
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Michel Hairaud, 08-04-2023 15:38
Michel Hairaud
Re : Brown disc on soil
By the way, Zotto, what paper established that R. calopus is a synonym of C. bennettii or that C. calopus is to be considered as a Clarireedia ? Amitiés. Michel
Hans-Otto Baral, 09-04-2023 09:33
Hans-Otto Baral
Re : Brown disc on soil
The paper will appear soon in Life. It is about Helotium fulvum and in this matter it was necessary to decide whether or not to accept Clarireedia as a genus of its own.

The layout is finished, we got it just yesterday and now I need to apply a few corrections.
Michel Hairaud, 09-04-2023 09:35
Michel Hairaud
Re : Brown disc on soil
Merci Zotto
I am looking forward to this paper
Michel
Margot en Geert Vullings, 09-04-2023 19:42
Re : Brown disc on soil
We would very much  like to know if R. calopus is correct or is it impossible to say with the latest photos?
Hans-Otto Baral, 09-04-2023 19:56
Hans-Otto Baral
Re : Brown disc on soil
It is difficult. The broken ascus base recalls more a simple septation with a blind basal protuberance, typical of C. paludosa. Look at my folder henningsiana-paludosa
Margot en Geert Vullings, 10-04-2023 15:31
Re : Brown disc on soil
Sorry Hans-Otto, we can't find your folder about henningsiana-paludosa?

Margot
Hans-Otto Baral, 10-04-2023 16:36
Margot en Geert Vullings, 10-04-2023 17:23
Re : Brown disc on soil
Thank you very much, we have seen it.

We will see if the bit of material is still suitable to make another specimen, it was only one tiny disc.

Margot