Accès membres

Mot de passe perdu? S'inscrire

23-11-2017 13:36

Valencia Lopez Francisco Javier

Hola a todosHace unos días recolecte estas escler

24-11-2017 23:44

Bernadette Lefèvre Bernadette Lefèvre

Je retrouve ces photos d 'un champi resté sans no

17-03-2016 09:59

Pascal RIBOLLET

Bonjour Forum, Voici une récolte qui semble appa

23-11-2017 15:27

Zoltan Lukacs Zoltan Lukacs

Hello Everybody,among the scales of pine cone. Do

23-11-2017 17:12

Malcolm  Greaves Malcolm Greaves

I took a sample of wood from a rotten stump with S

24-11-2017 19:56

Chris Yeates Chris Yeates

Bonsoir tousThis was found on corticated attached

24-11-2017 16:11

Gilbert MOYNE

Bonjour,Voici une petite espèce qui me pose encor

22-11-2017 22:38

Garcia Susana

He encontrado un grupo de peritecios creciendo inm

23-11-2017 18:26

Andgelo Mombert

Bonsoir à tous,Sur branchette de feuillus, en fé

09-11-2017 19:35

Stephen Mifsud Stephen Mifsud

I found this greyish mould with a silvery tinge co

« < 1 2 3 4 5 > »
Pezicula cinnamomea ? sur branche morte de Tilia ?
BERNARD CLESSE, 10-11-2017 18:48
BERNARD CLESSEBonsoir à tous,

Voici ce que je pense être Pezicula cinnamomea sur branche pourrie, de tilleul très probablement.

Qu'en pensez-vous ?

Bernard
  • message #51152
  • message #51152
  • message #51152
Hans-Otto Baral, 10-11-2017 21:22
Hans-Otto Baral
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
I tend to say P. cinnamomea, yes. The apical ring should react deep red as in most species.
BERNARD CLESSE, 10-11-2017 23:22
BERNARD CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
Thank you for your answer, Zotto. It is possible that my lugol is no longer of good quality.

Bernard
BERNARD CLESSE, 12-11-2017 12:14
BERNARD CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
Hi, Zotto, here are apical ring of asci with the brownish-reddish colour in IKI + Melzer.

Bernard
  • message #51195
Hans-Otto Baral, 12-11-2017 12:16
Hans-Otto Baral
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
that's good, I only don't understand why you added Melzer. Melzer may show the redbrown stain for a few seconds but then the chloralhydrate clears the reaction.
BERNARD CLESSE, 12-11-2017 12:18
BERNARD CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
OK thank you, Zotto ! As my lugol is old, I thought that by putting a little more iodine with the melzer that the effect would be strengthened ... :o)

Bernard
Hans-Otto Baral, 12-11-2017 12:26
Hans-Otto Baral
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
Not sure what kind of MLZ you have. If you put enough of it, you should see no reaction anymore, though the plasma is yellow. If the red is still there in full strength, your MLZ is more probably Lugol and lacks the chloral hydrate. But you can smell this substance also.
BERNARD CLESSE, 12-11-2017 12:29
BERNARD CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
OK Zotto, thank you for your information!

Bernard