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15-09-2010 23:22

Martin Bemmann Martin Bemmann

Hi, this one I found some days ago on a dead fr

14-09-2010 09:43

Marja Pennanen

Hello, as I mentioned I found something besides t

13-09-2010 09:07

Marja Pennanen

Hello, these are tiny, 0,1-0,2 mm wide. There

13-09-2010 08:39

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. Une amie m'a transmis une récolte d'un

08-09-2010 21:24

Marja Pennanen

Hello, while looking for the pink Mollisia I natu

08-09-2010 14:19

Jacky Launoy

Bonjour à tous, j'ai une question pour les spéc

07-09-2010 12:01

Piet BORMANS Piet BORMANS

Est-ce que quelqu'un peut m'aider à déterminer c

03-09-2010 11:45

Marja Pennanen

Hello, yesterday evening I decided to go and pi

02-09-2010 16:04

Marja Pennanen

Hello, I found these on yesterday, too. They wer

02-09-2010 10:38

Marja Pennanen

Hi, I found these on some Carex yesterday. The

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Black Disco...
Martin Bemmann, 15-09-2010 23:22
Martin BemmannHi,

this one I found some days ago on a dead fragment of a Fagus branch stuck in a fork of a branch of Crataegus in appr. 0,5 m height above ground. It was full of Hypoxylon fragiforme and on a broken out surface of that branch I found lots of these black apothecia (c. 1 mm dm).
I made sections and found abundant paraphyses (with refractive content) but very few asci and no free spores.
These asci are unitunicate and maybe staining at the apex slightly in IKI but I can't decide whether red or blue (looked at them under 100x immersion). Spores are hyaline and alantoide to subfusiforme.
I hope someone will recognize this one, since I searched in vaine.

Best regards

Martin
  • message #12867
Martin Bemmann, 15-09-2010 23:23
Martin Bemmann
Re:Black Disco...
a section:
  • message #12868
Martin Bemmann, 15-09-2010 23:24
Martin Bemmann
Re:Black Disco...
the hymenium:
  • message #12869
Martin Bemmann, 15-09-2010 23:24
Martin Bemmann
Re:Black Disco...
Paraphyses:
  • message #12870
Martin Bemmann, 15-09-2010 23:25
Martin Bemmann
Re:Black Disco...
Ektal excipulum:
  • message #12871
Martin Bemmann, 15-09-2010 23:26
Martin Bemmann
Re:Black Disco...
and asci (59 x 6 µm):
  • message #12872
Martin Bemmann, 16-09-2010 00:12
Martin Bemmann
Re:Black Disco...
closest I found was Durella commutata on Zottos DVD. Would this be an option?

Regards,

Martin
Hans-Otto Baral, 16-09-2010 10:29
Hans-Otto Baral
Re:Black Disco...
Clearly Durella commutata, which must be IKI-. The similar D. suecica is IKI+, but on conifers. Better to study dead asci for the IKI-reaction. Where did you colect this, still in Thüringen?

Zotto
Martin Bemmann, 16-09-2010 10:47
Martin Bemmann
Re:Black Disco...
Thank you for confirming this! No I am back home, so this is from Heidelberg.

Regards

Martin