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Black Disco...
Martin Bemmann,
15-09-2010 23:22
Hi,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
Martin Bemmann,
15-09-2010 23:23
Re:Black Disco...
a section:
Martin Bemmann,
15-09-2010 23:24
Re:Black Disco...
the hymenium:
Martin Bemmann,
15-09-2010 23:24
Re:Black Disco...
Paraphyses:
Martin Bemmann,
15-09-2010 23:25
Re:Black Disco...
Ektal excipulum:
Martin Bemmann,
15-09-2010 23:26
Re:Black Disco...
and asci (59 x 6 µm):
Martin Bemmann,
16-09-2010 00:12
Re:Black Disco...
closest I found was Durella commutata on Zottos DVD. Would this be an option?
Regards,
Martin
Regards,
Martin
Hans-Otto Baral,
16-09-2010 10:29
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
Zotto
Martin Bemmann,
16-09-2010 10:47
Re:Black Disco...
Thank you for confirming this! No I am back home, so this is from Heidelberg.
Regards
Martin
Regards
Martin