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23-12-2024 18:18

Rot Bojan

Hello!I've been working with this small fungus for

24-12-2024 09:02

Charles Aron Charles Aron

Hi All, Recently I found this orange Disco growin

23-12-2024 12:10

Bernard CLESSE Bernard CLESSE

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

23-12-2024 22:59

Lucian Clanet Lucian Clanet

Hello,I'm trying to find information about the Hyp

21-12-2024 12:45

Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

22-12-2024 21:42

Bometon Javier Bometon Javier

Habitat en el suelo, con presencia de Calluna mult

17-12-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

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Josep Torres Josep Torres

Hello.Some tiny globose black ascomata found on De

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Simon Gurtner Simon Gurtner

Hello,can anyone help me identify this small ascom

22-12-2024 10:53

Bernard CLESSE Bernard CLESSE

Pourriez-vous me confirmer ma détermination de ce

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Mollisia "Tapesia" sp.
Carbone Matteo, 27-05-2008 15:22
Hello,
Few days ago I found this "Tapesia" on water soaked broadleaves wood (probably Quercus ilex).

Here you are some photos....
  • message #4776
Carbone Matteo, 27-05-2008 15:23
Re:Mollisia
....
  • message #4777
Carbone Matteo, 27-05-2008 15:23
Re:Mollisia
....
  • message #4778
Carbone Matteo, 27-05-2008 15:28
Re:Mollisia
MIcrofeatures:

KOH reaction: negative (using my KOH 5%)

Ascus' tip blu in Melzer, average 50 x 6, croziers+

Spores with few oil drops, 9.5-11 x 2-2.8 micron

Subiculum made up of thick-walled, septate hyphae.

If you need other features, I've living material to study! :)

Bye bye

Matte
  • message #4779
Carbone Matteo, 27-05-2008 15:31
Re:Mollisia
I forgot to tell you my opinion!!!!!!!!!!!! I think it could be Mollisia fusca, even if KOH reaction should be positive in that taxon (???)

bye
Matte
Hans-Otto Baral, 27-05-2008 16:52
Hans-Otto Baral
Re:Mollisia
Hi Matteo

I first thought for Haglundia elegantior but your upper microphoto probabbly shows the subiculum rather than a hairy margin. What is the diameter of the apothecia? H. elegantior has larger spores (*9-15 x 3-3.8 µm). Did you measure in water or Melzer? Dead ascus of 50 x 6 are also too small for H. elegantior.

Important is to see the spore content. Are there any oil drops? The image is not sharp enough.

Zotto
Andreas Gminder, 27-05-2008 17:23
Andreas Gminder
Re:Mollisia
Hallo,

may be you have two different species? The 2nd picture looks diferent with the blueish hymenium and the darker excipulum.
It is not M. fusca, which looks different macroscopically and has bigger spores - besides the always strong yellow KOH reaction.

It would be interesting to see the shape and size of the outer margin (the excipulum ectale). As Zotto I think your upper micropicture shows elements from the base of the apothecium
It would also be necessary to see the shape and the content of (living) spores.

best regards,
Andreas
Carbone Matteo, 27-05-2008 18:04
Re:Mollisia
Ok! before another "micro-study" (tomorrow), I try to answer to all your questions!

Zotto:
- The larger plant is about 3mm
- Spores have been measured in water
- (Why did you say "dead ascus"?? :) )
- You're right, the spores' picture is really bad!!! As already said the spores show few oil drops

Andreas:
- It's the same thing I thought (I'm talking about 2 different species), but The second picture has been done few cm from the first, on the same piece of wood. Do you think it could be another species?
I report the micro-features of the first and third photos.

As i said, tomorrow I'll give you more informations about this collection!!! :)

Thanks a lot

Bye
Matte
Carbone Matteo, 27-05-2008 18:53
Re:Mollisia
I'm back again (before what I've expected)...

I attach some pictures, hoping they could be useful to determine this collection....

This is for Andreas...
  • message #4791
Carbone Matteo, 27-05-2008 18:58
Re:Mollisia
You were right (oviously!! :) )... this was not ectal excipulum but the structure of the apo base.
  • message #4792
Carbone Matteo, 27-05-2008 20:18
Re:Mollisia
bad picture of the margo...
Carbone Matteo, 27-05-2008 20:19
Re:Mollisia
spores...
  • message #4795
Carbone Matteo, 27-05-2008 20:20
Re:Mollisia
....
  • message #4796
Carbone Matteo, 27-05-2008 20:20
Re:Mollisia
...
  • message #4797
Carbone Matteo, 27-05-2008 20:20
Re:Mollisia
....
  • message #4798
Carbone Matteo, 27-05-2008 20:21
Re:Mollisia
bad picture of the margo...
Hans-Otto Baral, 27-05-2008 21:53
Hans-Otto Baral
Re:Mollisia
Hi Matteo

different species may actually grow very very close together, but colour and other variants of the same species are also frequent and make taxonomy very difficult.

Sorry for not reading the guttules...:-(

Dead ascus: I suppose you don't joke. Fresh specimens not necessarily contain living elements, and the preparator frequently gives them the rest. Asci put in Melzer rest quietly and will never shoot spores anymore. Actually Melzer causes strong shrinkage to living asci (loss of turgor).

For identification: I miss the margin. There are hairs on the flanks so I suspect there are also some at the margin.

have a good night anyhow...
Zotto
Carbone Matteo, 28-05-2008 00:05
Re:Mollisia
Zotto wrote:"Dead ascus: I suppose you don't joke. Fresh specimens not necessarily contain living elements, and the preparator frequently gives them the rest. Asci put in Melzer rest quietly and will never shoot spores anymore. Actually Melzer causes strong shrinkage to living asci (loss of turgor). "

Yes Zotto, I didn't joke. Now It's all clear what you meant.
There are lots of things to learn in "ascus' world" and I'm trying to do it!! :)

Thanks a lot for your opinions!

bye
Matte

P.S. I can't attach the picture of the margin!! Tomorrow I'll try to resize the picture (or to make it better).



Nicolas VAN VOOREN, 28-05-2008 08:19
Nicolas VAN VOOREN
Re:Mollisia
Salut Matteo.
Content de te "voir" sur ce forum, tu as délaissé un peu les Otidea pour les Mollisia :-)

Les dernières photos de spores semblent exclure M. elegantior (forme et guttules). Est-ce que tu as la clé d'Andreas ? Si non, je pense qu'il se fera un plaisir de te l'envoyer.
Amicalement
Nico
Carbone Matteo, 28-05-2008 16:19
Re:Mollisia
Salut Nicolas!
Non, je n'ai pas abandonné Otidea... je devais prendre un pò de souffle, et j'ai choisi un genre simple!... he he he... :)

Je n'ai pas la clé d'Andreas, ou mieux, j'utilise habituellement cet online. Je sais que il y a une clé dans le dvd de Zotto, mais j'ai toujours pensé qu'il fût le même qu'il y a sur Mollisia.de, est-ce que je me trompe?

Salut
Matte