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14-12-2016 15:42

Lothar Krieglsteiner Lothar Krieglsteiner

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

14-12-2016 15:31

Lothar Krieglsteiner Lothar Krieglsteiner

... found on deciduous wood in National Park Eifel

14-12-2016 15:08

Lothar Krieglsteiner Lothar Krieglsteiner

... found last week in the National Park Eifel, Ge

13-12-2016 17:17

Ethan Crenson

Found in Inwood Hill Park, Upper Manhattan, New Yo

13-12-2016 22:05

Alan Smith

J'ai trouvé ce bois coloré sur la branche morte

14-12-2016 15:13

Lothar Krieglsteiner Lothar Krieglsteiner

... also from the National Park Eifel, Germany, la

13-12-2016 23:22

Yaroslav Moshchenko

Hello everybody  Maybe somebody can help Was fo

13-12-2016 19:05

Ahmed Mohamed Abdel-Azeem Ahmed Mohamed Abdel-Azeem

Hello every one Any one has the PDF of The Fifth

13-12-2016 13:35

Castillo Joseba Castillo Joseba

en hoja indeterminadaMe mandan material seco de Ga

13-12-2016 13:05

Lothar Krieglsteiner Lothar Krieglsteiner

This discomycete is (also) difficult for me to ass

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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