Dear Marja,
the only advice I can give you and others is to start with the masterful paper about genera: Rossman et al 1999, Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes), 1999, Studies in Mycology 42. 1-248. Maybe someone on the forum has it as a pdf, unfortunately I don't.
There you will learn about the importance of the reaction of the ascomatal wall in KOH and lactic acid, the structure of the wall, the presence of hairs, stroma, the anamorphs and features of cultures before suggesting a genus, let alone a species.
If you skip that step it will be difficult to make any progres with these fascinating fungi.
I wish you good luck!
Jacques

Hi Marja,
Here are some pages from Rossman 1999.
Cheers,
Christian

Hi friends,

It's always online, on SIM website : http://www.cbs.knaw.nl/publications/Sim42/content/contents.htm

 

Here, could it be an Hydropisphaera Christian ?

Alain

Hi Jacques, Christian, Alain,

thank you for these information. I try to study them, when time allows.

So can this be a Hydropisphaera, I do not know yet ;)

Marja

Hydropisphaera is not impossible, il would be necessary to see a vertical section through ascomatal wall and an image of dried ascomata.
Marja,
if you want you can send me your collection.

All my best
Christian

Dear Christian,

you know pretty well, that my surgery skills with my poor equipment are not the best possible ;)


So you will get post from me.

Marja