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10-11-2017 18:48

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Voici ce que je pense être Pezicu

10-11-2017 23:38

Bernard CLESSE Bernard CLESSE

Voici un pyréno sur tronc d'arbre mort, décortiq

11-11-2017 15:25

Stefan Blaser

Hello everybody,I would be very grateful for any h

11-11-2017 14:41

Andgelo Mombert Andgelo Mombert

Bonsoir à tous,J'ai besoin d'un coup de main pour

08-11-2017 20:55

Garcia Susana

HolaCreo que podría tratarse de una Hilberina.Per

10-11-2017 06:45

Ethan Crenson

Perhaps someone has some insight on this and can h

07-11-2017 23:57

Elsa Sousa

Hi,Is that possible to identify this?Spores (22)

08-11-2017 19:37

Johan Myhrer

Was sure this would be something easily solved und

04-11-2017 12:56

Castillo Joseba Castillo Joseba

Me mandan el material de GaliciaNo tengo ni idea p

07-11-2017 18:14

Ivana Kusan Ivana Kusan

Dear colleagues,I'm looking for the following titl

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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
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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
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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