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28-02-2026 15:52

Spooren Marco Spooren Marco

Who has an idea ? I have no coupes made for conid

27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

27-02-2026 12:56

Åge Oterhals

Found on fallen cones of Pinus sylvestris in midle

27-02-2026 11:21

Yannick Mourgues Yannick Mourgues

Hi to all. Here is a specie that can may be relat

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

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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