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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 17:51

Michel Hairaud Michel Hairaud

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

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

26-02-2026 15:00

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, recolectada

24-02-2026 00:21

Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

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Cryptodiscus species ?
Aafke Buijs, 24-09-2015 12:47
Hi,

On deteriorated wood of broadleaves (Craetagus, Populus, Sambucus) found these small orange apothecia, that at first sight looked like a nectria.
Under the lens it seemed a Stictis but then under the microscope it showed large, seven septated spores, pointed at the ends, the middle fragments somewhat thickened.
Spores measured about 65 mu and the asci about 132 mu.
Apothecia partially sunken in the substrate, whitish bulb surrounded by an orange layer.

I would appreciate your help.

Greetings, Aafke

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Martin Bemmann, 24-09-2015 13:14
Martin Bemmann
Re : Cryptodiscus species ?
Hi Aafke,

this could be Pseudotrichia viburnicola. Can you give a closer look on the fruitbodies?
I would expect some more granular content in the spores.

Regards
Martin
Aafke Buijs, 24-09-2015 13:33
Re : Cryptodiscus species ?
Hi Martin,

More pictures coming up soon.
For the moment, thank you for your suggestion. Pseudotrichia viburnicola looks like a good candidate !
Do you know were I could find a description of this species ?
Martin Bemmann, 24-09-2015 13:49
Martin Bemmann
Re : Cryptodiscus species ?
Dear Aafke,

if you search the forum you will find some collections and a file by me:
http://www.ascofrance.fr/uploads/document/80-0001.pdf

regards
Martin
Aafke Buijs, 24-09-2015 13:57
Re : Cryptodiscus species ?
Ah, thanks.
Aafke Buijs, 25-09-2015 16:06
Re : Cryptodiscus species ?
...... and the rest of the series of pictures, as promised.
Pseudotrichia viburnicola fits well.

Greetings, Aafke
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Martin Bemmann, 25-09-2015 16:37
Martin Bemmann
Re : Cryptodiscus species ?
Thanks Aafke! Now the spore content looks more familiar to me.
Is the first of the new pictures just in water, or did you add KOH?
What kind of iodine did you use, Melzer's or Lugol?

Regards
Martin
Aafke Buijs, 25-09-2015 18:06
Re : Cryptodiscus species ?
I used KOH for the first picture and Melzer's as iodine.

Regards, Aafke
Martin Bemmann, 25-09-2015 18:24
Martin Bemmann
Re : Cryptodiscus species ?
Again thanks,

I suspected the use of KOH since I can't remember of such purple pigments in previous collections, interesting!
Regards
Martin