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20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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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