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18-10-2009 00:15

Alain GARDIENNET Alain GARDIENNET

Bonsoir, Cylindrocladium buxicola fait des ravage

17-10-2009 21:28

Martin Bemmann Martin Bemmann

Hi, Ditte and me are back from a completely unm

17-10-2009 18:52

Antonio Miguel Reyes Soto Antonio Miguel Reyes Soto

Tuber regianum Mont. & Iazz , alguna referencia G

17-10-2009 15:39

Till Lohmeyer

Lors d'un bref voyage à Cluny j'ai trouvé Eutryb

17-10-2009 15:11

Uwe Lindemann Uwe Lindemann

Hello Forum, recently I found a Pyrenomycet on a

16-10-2009 23:03

Yannick Mourgues Yannick Mourgues

Hi. I found this hymenoscyphus on died branches

16-10-2009 19:10

Martin Bemmann Martin Bemmann

Hi, collected this on tiny dead branche of Arun

16-10-2009 18:44

Hans-Otto Baral Hans-Otto Baral

Here is another Ostropales mystery. Obviously clos

16-10-2009 17:53

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. Quelqu'un aurait-il l'article suivant et

14-10-2009 21:53

Joseph Pellicani

micro

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Discomycet on leaves of Acer pseudoplatanus
Gernot Friebes, 06-10-2009 22:05
Hi,

I found the following discomycet on old, wet leaves of Acer pseudoplatanus (5.9.2009). I do not know why but I do not even come to a proper genus (the best genus I came across was Microscypha).
The apothecia were quite tough with a brown, somewhat appressed-hairy margin. The spores were 19-21 x 5 µm, the asci were 8-spored, IKI bb and without croziers. The paraphyses were up to 3 µm wide without any notably content. The hyphae at the margin were brownish incrustet.

Best wishes and many thanks
Gernot
  • message #9193
Gernot Friebes, 06-10-2009 22:06
Re:Discomycet on leaves of Acer pseudoplatanus
micros:

spores
asci in IKI
excipulum
  • message #9194
Hans-Otto Baral, 06-10-2009 22:13
Hans-Otto Baral
Re:Discomycet on leaves of Acer pseudoplatanus
Hi Gernot

the spores wre surely distinctly scutuloid and the leaves sceletonized. This is Hymenoscyphus vacini, also known as Lanzia vacini. Typical are the brownish striae on the exterior. Only on Acer.

here a specimen from around Munich.
Zotto
  • message #9195
Gernot Friebes, 06-10-2009 22:23
Re:Discomycet on leaves of Acer pseudoplatanus
Hi Zotto,

oh dear, I should have known that species. Anyway, thank you very much for the help and the nice pictures!
By the way, do you know what vacini means?

Best wishes,

Gernot
Hans-Otto Baral, 06-10-2009 22:30
Hans-Otto Baral
Re:Discomycet on leaves of Acer pseudoplatanus
It was the collector, V. Vacek.

Do you mean September or was it collected yesterday ? :-)

Zotto
Gernot Friebes, 06-10-2009 22:38
Re:Discomycet on leaves of Acer pseudoplatanus
thanks again!

I really mean September :)

Best wishes,

Gernot