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15-02-2026 04:32

Tomaz Vucko Tomaz Vucko

One more specimen that is giving me some descent a

03-02-2013 19:50

Nina Filippova

Good time), I've compared this specimen with the

17-02-2026 17:26

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous, Je recherche cette publication :

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

17-02-2026 13:41

Isabelle Charissou

Bonjour, est-ce que quelqu'un pourrait me fournir

16-02-2026 18:34

Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

16-02-2026 17:14

Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

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Nitschkia
Hans-Otto Baral, 09-07-2011 13:43
Hans-Otto BaralHi all

I have collected a Nitschkia? near Sheffleld (Yorkshire), on attached branch of a dead Betula standing in a swamp, with aseptate curved biguttulate spores *11-14 x 3.5-3.8 µm, 8-spored asci, and rather small almost smooth apothecia.

N. confertula would be a choice, but the spores are perhaps too long when I compare Virginia's key (Mycologia 96, 2004, p. 915). I did not yet look at the subicular hyphae which are not evident on the macro.

Any idea?

Zotto
  • message #15772
Hans-Otto Baral, 09-07-2011 13:44
Hans-Otto Baral
Re : Nitschkia
Here a view on the peridium
  • message #15773
Hans-Otto Baral, 09-07-2011 13:44
Hans-Otto Baral
Re : Nitschkia
Living asci and spores
  • message #15774
Alain GARDIENNET, 09-07-2011 17:06
Alain GARDIENNET
Re : Nitschkia
Hi Zotto,
Yes spores too long for confertula, too wide for cupularis... perhaps closer of cupularis than confertula ?
If the outer cells of the peridium are prolonged into pointed spines, it could be N. brevisipina.
Alain
Hans-Otto Baral, 09-07-2011 21:10
Hans-Otto Baral
Re : Nitschkia
Hi Alain

I am sorry I dod not keep the specimen. On my photo it is clear that there are no spines , only black-brown, somewhat protruding cells.

My impression is that the spores of N. collapsa are 1-septate already when inside the living asci. I do not think this here is not mature enough, though the spores might change in an overmature stage.

Zotto