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31-07-2025 16:32

Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

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Antonio Ezquerro Antoñana Antonio Ezquerro Antoñana

Hola a todos, Me gustaría saber qué opinan sobre

12-02-2012 11:31

Hans-Otto Baral Hans-Otto Baral

Hi allI am quite sure that nobody has a pdf of thi

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éric ROMERO éric ROMERO

Bonjour tous, J'ai trouvé sur pétiole de Fraxin

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Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche la description et la planche

30-07-2025 20:52

Bohan Jia

Hi together,  I've been looking posts in AscoFra

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Bernard CLESSE Bernard CLESSE

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Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

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Nemania on Quercus
Lothar Krieglsteiner, 14-12-2016 15:42
Lothar Krieglsteiner

... found in the National Park Eifel, Germany.


The only thing I am sure of is it is not N. serpens, because the porus is blue in IKI.


I do not find striate spores - not chestersii


I do not find a (at least not conspicuous) germ slit - not aenea var. aenea


The flesh is not whitish - not aenea var. macrospora


too large, too many perithecia for confluens ...


 


So, where am I wrong? Can somebody provide a tip.


Best regards from Lothar

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Eduard Osieck, 14-12-2016 17:52
Re : Nemania on Quercus
Hi Lothar,

Did you consider N. serpens var. colliculosa which unlike N. serpens shows also a blue reaction? It has been raised to species level by Granmo et al. (1999) but this is not followed by many others (why not?). The only problem with this identification are the rather large ascospores of your collection judging from the measurements given in one of your pictures (typically 10-13,5 mu).

I found this species (or variation) in October last in the eastern part of the Netherlands (Winterswijk).

Eduard
Lothar Krieglsteiner, 15-12-2016 10:12
Lothar Krieglsteiner
Re : Nemania on Quercushttp://pyrenomycetes.free.fr/nemania/keydir/dichotomickey.htm

Hi Eduard,


you are right - that was the mistake!


And the spores are a little bit large, but this is perhaps the minor problem ...


In http://pyrenomycetes.free.fr/nemania/keydir/dichotomickey.htm


I did not really consider the variety of serpens, because I thought it must have a red IKI-reaction like the typical form.


So - thank you vey much. I will deal with my specimen as Nemania (serpens var.) colliculosa now. I also doubt if something with hemiamyloid and with euamyloid asci should be considered the same species (???).


Best regards from Lothar