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02-07-2013 09:19

Elisabeth Stöckli

Trouvé sur des débris d'une place à feu (dépos

01-07-2013 14:24

Enrique Rubio Enrique Rubio

Hi to allThis Gnomonia grew on stems of Euphorbia

02-07-2013 11:25

Björn Wergen Björn Wergen

Hi there,we have found a nectriaceous fungus growi

02-07-2013 06:46

Nina Filippova

Hello, dear colleagues. I want to share with you

02-07-2013 07:24

Nina Filippova

Shceuchceria palustris is common species in wet sp

30-06-2013 23:51

Chris Yeates Chris Yeates

Bonsoir tousdoes anyone have access to:Nawaschin,Â

27-06-2013 20:45

hannie wijers

I wonder if this could be a Coniochaeta tetraspora

26-06-2013 21:08

Marja Pennanen

Hello forum,or this time maybe Zotto...I found the

30-06-2013 14:16

Uwe Lindemann Uwe Lindemann

Hi to all,I'm searching for the followig paper:FOU

30-06-2013 15:41

Chris Yeates Chris Yeates

Bonjour touscollected recently on Phalaris lying i

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Pyrenomycet on wet wood
Gernot Friebes, 01-07-2010 11:36
Hi,

this pyrenomycet grew on a very wet piece of a stem lying next to a stream, together with Pseudohalonectria lutea, Miladina lecithina, Orbilia sarraziniana and others. The spores remind me of Kirschsteiniothelia aethiops, however, they are too big and the other characters do not fit.

The perithecia are smooth, very soft, black and +- superficial. The spores are smooth too, 32-38 x 13-14 µm big and always two-celled. I didn't observe any sheaths. The asci are +- cylindrical, 8-spored and bitunicate. Paraphyses are present. The peridium consists of brown, roundish to angular cells.

I'd be happy if you could help me. :)

Best wishes,

Gernot


perithecia:
  • message #12175
Gernot Friebes, 01-07-2010 11:37
Re:Pyrenomycet on wet wood
micros (scale=10 µm):

  • message #12176
Christian Lechat, 01-07-2010 12:38
Christian Lechat
Re:Pyrenomycet on wet wood
Hi gernot,
I think your fungus is Jahnula aquatica, species very common on submerged wood.
All the best ,
Christian
Gernot Friebes, 01-07-2010 14:52
Re:Pyrenomycet on wet wood
Hi Christian,

thank you very much!

Best wishes,

Gernot
Jacques Fournier, 01-07-2010 21:48
Jacques Fournier
Re:Pyrenomycet on wet wood
Hi Gernot,
Jahnula aquatica is a very distinctive fungus, and your very good photos make the identification unambiguous. Great!
Jacques
Gernot Friebes, 01-07-2010 22:15
Re:Pyrenomycet on wet wood
Thank you, Jacques! I think once you have found a name for this species, you won't forget it anymore.

Best wishes,

Gernot (who is looking forward to reading your work about aquatic Ascomycota)
Till Lohmeyer, 01-07-2010 23:09
Re:Pyrenomycet on wet wood
Cher tous,

I think, I have to thank Gernot for his question and Christian for his answer ... I have a file here named "Ignota genera", containing descriptions of Ascomycetes I could not place - for lack of time or knowledge - into a particular genus. The last entrance was a personal note on ... what just turned out to be Jahnula aquatica! It was found at the end of March this year on (very) wet wood in a swampy area in South Eastern Upper Bavaria. The species seems to have escaped the attention of German mycologists for a long time, although the type locality of Amphisphaeria aquatica Kirschstein & Plöttner (1906) was in Brandenburg.

Unfortunately my collection was very scanty, so I could not make an exsicccatum. But In this case I rely on my notes which are almost identical with Gernot's.

Best regards
Till
Gernot Friebes, 01-07-2010 23:16
Re:Pyrenomycet on wet wood
Hi Till,

it's always a nice feeling if you find something indeterminable and after some time somebody shows it in a forum. :)

I wonder if Jahnula aquatica is common in my area too, I'll keep my eyes open.

Best wishes,

Gernot