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10-04-2025 21:52

Andreas Millinger Andreas Millinger

Bonsoir! I'm new to the forum and would kindly as

09-04-2025 19:37

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon This 1-2 mm Mollisia was growing o

09-04-2025 12:45

Yanick BOULANGER

BonjourVoici un Hymenoscyphus qui me pose problèm

10-04-2025 16:22

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

08-04-2025 21:36

Milan Malek Milan Malek

Hello forum, could you help me with this asco?Foun

10-04-2025 10:09

Mathias Hass Mathias Hass

Hi, Found in March on last years stick from Rubus

08-04-2025 17:31

Edvin Johannesen Edvin Johannesen

I have a fresh specimen of a Ceratosphaeria on dea

09-04-2025 18:32

Blasco Rafael Blasco Rafael

Hola, alguna idea de por que genero tengo que mira

06-04-2025 17:28

Alessio Pierotti Alessio Pierotti

Tenuta di Tombolo (Parco regionale Migliarino San

07-04-2025 16:07

Nicolas Suberbielle

Bonjour à tous,Je sèche sur une récolte réalis

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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