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03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

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Helotiaceae?
Yatsiuk Iryna, 06-12-2010 16:57
Yatsiuk IrynaHello, everybody
Recently I have found a small white stalked discomycete on the bark of most likely Quercus robur.
Spores: 6,4-7,6*1,6-2,3 um
Asci: 43-49*2,7-4 um, with croziers
Pore blued in IKI
Marginal hairs 5-6 septate, 70-80 um in length.
Paraphyses were incrusted with small granules.
What it can be? Thank you very much for any help.

Irina
  • message #13668
Hans-Otto Baral, 06-12-2010 17:02
Hans-Otto Baral
Re:Helotiaceae?
Hi Irina

with your data it is difficult to name a genus. First, are the apothecia white? What diameter?
The hairs are hyaline? Important: are the hairs actually smooth?
The granules of the paraphyses are surely inside. I assume you looked at the fresh specimen?

Oh, I did not see the photo before. They are a bit dried as it seems. You can spray with water to get them more opened.

Maybe a Lachnum, but then the hairs are distinctly rough.

Zotto
NC NC, 06-12-2010 17:36
Re:Helotiaceae?
I sprayed them with water.
Maybe hairs on my picture are just hyphae of some fungicolous fungus, now I see, that they are not on every fruit body.
  • message #13671
Yatsiuk Iryna, 06-12-2010 17:39
Yatsiuk Iryna
Re:Helotiaceae?
Thank you, Zotto,

I have sprayed them with water.
Maybe hairs on my picture were only hyphae of fungicolous fungus, now I see, that they are not on every fruit body.

Irina
  • message #13672
Hans-Otto Baral, 06-12-2010 17:55
Hans-Otto Baral
Re:Helotiaceae?
Yes, so they look better :-)
I assume a Lachnum (or Dasyscyphella). Depends on how the hairs look a like.

Zotto
Yatsiuk Iryna, 06-12-2010 18:03
Yatsiuk Iryna
Re:Helotiaceae?
Thanks a lot one more time, for your help!
And one more question - is there some special literature on these two genera?
Irina
Hans-Otto Baral, 06-12-2010 18:18
Hans-Otto Baral
Re:Helotiaceae?
Yes, I attach here a recent paper dealing with Dasyscyphella and others. Marketa also wrote one on Lachnum but it seems I do not have a pdf of it.


Zotto
Erik Steuperaert, 06-12-2010 18:31
Re:Helotiaceae?
Perhaps one of the following...
Trechopeziza mollissima
Trechopeziza sulphurea
Albotricha acutipila
Lachnellula willkommii
Yatsiuk Iryna, 06-12-2010 18:51
Yatsiuk Iryna
Re:Helotiaceae?
Zotto,
Thank you for the paper, I'll take a closer look at hairs.
Irina