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23-12-2024 22:59

Lucian Clanet Lucian Clanet

Hello,I'm trying to find information about the Hyp

21-12-2024 12:45

Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

22-12-2024 21:42

Bometon Javier Bometon Javier

Habitat en el suelo, con presencia de Calluna mult

23-12-2024 18:18

Rot Bojan

Hello!I've been working with this small fungus for

23-12-2024 12:10

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

17-12-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

23-12-2024 14:37

Josep Torres Josep Torres

Hello.Some tiny globose black ascomata found on De

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Simon Gurtner Simon Gurtner

Hello,can anyone help me identify this small ascom

22-12-2024 10:53

Bernard CLESSE Bernard CLESSE

Pourriez-vous me confirmer ma détermination de ce

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Louis DENY

Bonsoir forumTrouvé à Belfort, 400 m altitude, s

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Nemania aenea var. aenea?
Björn Wergen, 31-12-2011 19:35
Björn WergenHi,

I have some problems with this pyrenomycete, which seems to be a member of the genus Nemania. My determination says it is N. aenea var. aenea. Perhaps someone can give his opinion about it.
The spore surface does not have any lines, it seems to be smooth. I have compared my finding with data about N. aenea and with the description of pyrenomycetes.free.fr.

The stroma is only a few mm² and consists of some clustered, 0,2-0,5 mm broad perithecia. The substrate seems to be Fraxinus or Alnus, I am not sure.

thanks and regards,
björn
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Jacques Fournier, 31-12-2011 20:15
Jacques Fournier
Re : Nemania aenea var. aenea?
Hi Björn,
your identification seems very plausible. Two additional tips to recognize it are the fairly soft stromata (just weakly carbonaceous) and the short germ slit which is more visible than that of N. serpens. The colour of apical plugs you obtained after a drastic treatment in 20% KOH is interesting. You should try it on other members of the genus, maybe you will find diagnostic reactions.
From my experience, Nemania aenea has a peculiar ecology, I always found it on wood that had been staying in water and then washed onto the banks, anyway never far from water. Is it the case with your find?
Happy new year!
Jacques
Björn Wergen, 31-12-2011 21:23
Björn Wergen
Re : Nemania aenea var. aenea?
Hi Jacques,

well I found this Nemania in a very wet lowland forest with Alnus, Salix and Fraxinus trees. The twig was lying between plants not far away from water, this is right.

I have some other Nemania species lying here which have not been determinated yet. I will show them next year :D (perhaps tomorrow).

regards,
björn