Accès membres

Mot de passe perdu? S'inscrire

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

« < 1 2 3 4 5 > »
It's been hot and dry here
Marja Pennanen, 07-08-2010 15:51
So I've been forced to seek damp places. The bottoms of drying ditches have been full of wonders.
For instance these:
  • message #12492
Marja Pennanen, 07-08-2010 15:53
Re:It's been hot and dry here
They are 1-1,5 mm wide.
Heres an overview of microscophy:
  • message #12493
Marja Pennanen, 07-08-2010 15:56
Re:It's been hot and dry here
Mollisia?

But the spores are odd for a Mollisia.
They are about 15-18x6-8 and can have a septa
  • message #12494
Marja Pennanen, 07-08-2010 15:57
Re:It's been hot and dry here
The asci are about 80-100x10-15.
Paraphyses are 2-3 micrometers wide, widening at tips and have many droplets and are about 20-30 micrometers longer than asci.
  • message #12495
Michel Hairaud, 07-08-2010 16:54
Michel Hairaud
Re:It's been hot and dry here
Hi Marja,
The paraphyses full with Vbs and spore shape would rather fit Hymenoscyphus or Tatraea
Did you check the IKI reaction and the presence of a textura intricata in the medulla ?
I would suggest Tatrae dumbirensis though the spores are smaller than usually

Amitiés

Michel
Michel Hairaud, 07-08-2010 18:07
Michel Hairaud
Re:It's been hot and dry here
Hi Marja,
I have just posted a new ''fiche'' in Ascofrance for Tatraea dumbirensis. There is another one by Enrique Rubio under the synonym Ciboria dumbirensis. The paraphyses do not fit your collection.
Hymenoscyphus remains a suggestion.
Amitiés
Michel
Hans-Otto Baral, 07-08-2010 18:44
Hans-Otto Baral
Re:It's been hot and dry here
Hi Marja & Michel

Tatraea has only faintly refractive VBs in the paraphyses, and curved spores. I believe this is Graddonia coracina. Ascus IKI-reaction should clarify this (Graddonia -, Tatraea strongly blue).

Zotto
Marja Pennanen, 07-08-2010 20:48
Re:It's been hot and dry here
Hello folks,
I meshed with the specimen by adding too much lugol. So the views were not clear.
But I saw no strong blue reactions, actually was very uncertainly claiming this to be IKI-.
Thought, that I must be asked to tell something of so uncertain observations ;) (But was almoust sure to be forced to do so ;) )
Naturally I'm now overloaded of specimen to be studied and not very willing to take another try...
Even more naturally I've never before met a Graddonia, which I suppose this is :)
Yes, once again a new genus for lucky me :)

Thank you very, very much Michel and Zotto.

This seemed to turn browner in fridge:
  • message #12501
Andreas Gminder, 08-08-2010 15:46
Andreas Gminder
Re:It's been hot and dry here
Hello Marja,

you can see some macro- and microfotos of Graddonia coracina here:
http://www.mollisia.de/Galerie/Ascomycetes/F-K.html

best regards,
Andreas
Marja Pennanen, 08-08-2010 16:08
Re:It's been hot and dry here
Thank you Andreas :)

There seems to be many other photos of interesting species in the gallery, too :)

Thankfully Marja