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Mot de passe perdu? S'inscrire

01-06-2010 20:55

Enrique Rubio Enrique Rubio

Hi to all. What's your opinion about this Thecoth

31-05-2010 23:24

Peter Welt Peter Welt

Who can help? Because a finding of a Delitschia on

31-05-2010 15:43

Renée Lebeuf

Bonjour à tous, Je sollicite votre aide pour

31-05-2010 15:42

Luc Bailly Luc Bailly

Ce n'est pas facile de trancher, parfois! :/ Qu

31-05-2010 09:15

Marja Pennanen

Hello folks, these clusters can be nearly 1 mm

30-05-2010 22:25

Luc Bailly Luc Bailly

J'en suis à la compilation de mes notes du stage

30-05-2010 20:40

Alex Akulov Alex Akulov

Dear friends Today my colleagues from Russia have

30-05-2010 19:56

Luc Bailly Luc Bailly

Pour avis éclairé. Aquatique. Toujours dans le F

30-05-2010 19:48

Luc Bailly Luc Bailly

Une petite chose pour les "aquascomycologues" (bon

30-05-2010 12:34

Gernot Friebes

Hi, yesterday somebody gave me this cone of Pin

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What could this be?
Gerrit Jansen, 27-03-2014 15:38
Gerrit JansenHi all,

Could anyone give me an idea what this could be?

Thanks, Gerrit

On fallen branch of Salix. Apothecia diam 0.3-0.4 (0.5) mm, sessile.

Ascus contains 8 spores, iodine positive, 69-66 x 9-10 ?m, croziers present.


Paraphyses cylindrical width 2-3.5 ?m.


Spores non septate, 7-16.5 x 2-3.5 ?m; Qav.=4.4; n=15; spores taken from apothecium in Congo red in 5% ammonia.

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Chris Yeates, 27-03-2014 16:28
Chris Yeates
Re : What could this be?
Hello Gerrit
have you checked to see if there is a KOH reaction?
regards
Chris
Gerrit Jansen, 27-03-2014 16:52
Gerrit Jansen
Re : What could this be?
Hi Chris,
The apothecium turns yellowish greenish in 5% KOH.
Gerrit
Luc Bailly, 27-03-2014 18:30
Luc Bailly
Re : What could this be?
Hi Gerrit,
Also: could you take the size of spores just in water? In Congo read, that will disturb the measures. Check also if the spores aren't septate now and then.
Looking at the spores in water is absolutely necessary, because NH4OH and KOH can influence the number and look of the guttules.

Then, take Andreas Gminder's key: http://www.mollisia.de/Word_Dokumente/key.doc

Cheers - LUC.
Gerrit Jansen, 27-03-2014 21:32
Gerrit Jansen
Re : What could this be?
Hi Luc and Chris,

I measured the spores in water 12.7 x 2.9 um.

Thanks for the link to Andreas Gminders Mollisia key. With your help and the key I quickly arrived at Mollisia fusca.

Problem solved, thanks again.

Regards, Gerrit