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25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

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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