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30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

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Orange pyreno
Martin Bemmann, 21-08-2010 22:32
Martin BemmannHi,
this one I found 3 days ago in a small park close to the Neckar river in Heidelberg. There are only Aesculus trees, so the twig I picked up from the ground shoud be of Aesculus hippocastanum.
With the naked eye there was nothing to be seen. With my hand loup I saw something like hairy orange dust. Rehydrated at home it looked like this:

  • message #12530
Martin Bemmann, 21-08-2010 22:32
Martin Bemmann
Re:Orange pyreno
closer view:

  • message #12531
Martin Bemmann, 21-08-2010 22:35
Martin Bemmann
Re:Orange pyreno
and even more closer (mind the white hairs!):

  • message #12532
Martin Bemmann, 21-08-2010 22:37
Martin Bemmann
Re:Orange pyreno
I had no idea what it might be up to this point. Then I made a section and recognized that the main portion of this fungus is immersed in the substratum:

  • message #12533
Martin Bemmann, 21-08-2010 22:39
Martin Bemmann
Re:Orange pyreno
The outer width of the pseudothecium is 0,9 mm. The ostiolum is sometimes, when the ascocarp is mature, covered with a lump of hyphae mixed up with ejected spores.
  • message #12534
Martin Bemmann, 21-08-2010 22:40
Martin Bemmann
Re:Orange pyreno
side view of the osteolum:

  • message #12535
Martin Bemmann, 21-08-2010 22:41
Martin Bemmann
Re:Orange pyreno
Asci seem to be unitunicate and bi- or multiseriate:
  • message #12536
Martin Bemmann, 21-08-2010 22:42
Martin Bemmann
Re:Orange pyreno
And here some spores, 7 septa, (54-70 x 10-12,5 µm).

Any idea?

Best regards,

Martin
  • message #12537
Hans-Otto Baral, 22-08-2010 00:15
Hans-Otto Baral
Re:Orange pyreno
Pseudotrichia viburnicola. Sieeh DVD HB 4048, habe ich jetzt in den Melanommataceen stehen.

zotto
Martin Bemmann, 22-08-2010 00:34
Martin Bemmann
Re:Orange pyreno
Danke Zotto!
auch ich hatte den, wie der Finder Deines Belegs, erst mal für einen Discomyceten gehalten...

Gruß

Martin
Gary Samuels, 23-08-2010 21:14
Re:Orange pyreno
Looks like a Tubeufia to me.
Martin Bemmann, 24-08-2010 00:55
Martin Bemmann
Re:Orange pyreno
Hi Gary,

Pseudotrichia viburnicola as it is described by Crouan/Crouan and identified as it in some pictures in the web and on Zottos DVD would perfectly fit to my collection. But apparently there are only very few specimen collected (mostly in France) that make up this species.
The genus Tubeufia is known to me by Amy Rossman's paper of 1987. But I did not find convincing features in the keys. Maybe due tu my greenness... ;-)

Thank you for your suggestion, that widened my field of view for further study.

Martin