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Mot de passe perdu? S'inscrire

09-08-2020 07:55

Lothar Krieglsteiner Lothar Krieglsteiner

... maybe Molinia, in an acid bog (near Narthecium

15-02-2018 08:09

BERNARD CLESSE BERNARD CLESSE

Sur tige morte de renouée du Japon.Aucune idée

09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

08-08-2020 20:54

Antonio Couceiro

Ascoma de 5cm, creciendo entre raices de Prunus la

09-08-2020 22:18

Lothar Krieglsteiner Lothar Krieglsteiner

... the spores of this find (today, in the Eifel,

09-08-2020 15:33

Eduard Osieck

Can somebody provide a copy of GÖRKE, C. & H

09-08-2020 23:56

Garcia Susana

Hola, He recogido estos apotecios sobre una rama

09-08-2020 14:20

Castillo Joseba Castillo Joseba

De esta mañana en el himenio de una Daedaleopsis

09-08-2020 07:33

Lothar Krieglsteiner Lothar Krieglsteiner

... exactly Filipendula ulmaria, in the Eifel (Ger

09-08-2020 15:22

Eduard Osieck

This long papillate, bitunicate asco with muriform

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Troublesome operculate... (lots of pictures)
Martin Bemmann, 09-08-2009 21:43
Martin BemmannDear all,

today I found these little milk-coffee coloured lads and I can't figure out their name (Rumpelstiltskin...?).
Ok, habitat is sessile on dead trunk (ca. 15 cm diameter) of Alnus fallen over a small creek (on loose bark). It was inhabitated by Orbiliae and Scutellinias as well.
Shape is a nearly round cushion.
Size of apothecia is 3-6 mm.
Asci are operculate and to my opinion IKI-, their size is ca. 345x15-17 µm.
The slightly clavate paraphyses are up to 35 µm longer.
The spores measure (19,8)20,2-20,9(21,3)x11,5-12,1 µm.
The textura of the excipulum is globulose and very hyaline.

I checked again and again my (limited) collection of books, tried to follow keys (Dennis etc.) without result.
I would very much appreciate any hint to find the genus at the least.

Best regards,

Martin
  • message #8715
Martin Bemmann, 09-08-2009 21:44
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
A view into the hymenium:
  • message #8716
Martin Bemmann, 09-08-2009 21:44
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
with IKI:

  • message #8717
Martin Bemmann, 09-08-2009 21:45
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
The textura of the excipulum:
  • message #8718
Martin Bemmann, 09-08-2009 21:45
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
Asci:

  • message #8719
Martin Bemmann, 09-08-2009 21:46
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
And paraphyses:
  • message #8720
Martin Bemmann, 09-08-2009 21:47
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
in IKI, showing the operculum:
  • message #8721
Martin Bemmann, 09-08-2009 21:47
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
and spores: in IKI:

  • message #8722
Andreas Gminder, 09-08-2009 22:02
Andreas Gminder
Re:Troublesome operculate... (lots of pictures)
Hallo Martin,

hab grad keine Literatur zur Hand, aber makroskopisch sieht das sehr nach Pachyella babingtonii aus. Spricht da mikroskopisch was dagegen?

beste Grüße,
Andreas
Martin Bemmann, 09-08-2009 22:15
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
Hello Andreas,

according to B&K Pachyella b. (I had this on my list but...) is IKI+ (however, "faible" as said in my french copy of B&K). The ascocarpes displayed in this publication are seemingly not very fresh as well.
But the pictures at Mycokey are very convincing!

Thank you Andreas!

Cheers, Martin
Andreas Gminder, 09-08-2009 22:20
Andreas Gminder
Re:Troublesome operculate... (lots of pictures)
Hallo Martin,

ich habe Pachyella babingtonii schon öfters völlig J- gehabt. Auch wenn sie positiv reagiert ist das nur ein diffuses blau der ganzen Asuswand entlang und nicht wie bei Peziza auf die Spitze beschränkt und deutlich.

beste Grüße,
Andreas
Martin Bemmann, 09-08-2009 22:26
Martin Bemmann
Re:Troublesome operculate... (lots of pictures)
Hallo Andreas,

ich habe inzwischen die Beschreibung von Dennis gelesen, das paßt perfekt!
Bei so schwachen IkI-Reaktionen bin ich mir immer unsicher, ob ich nicht nur durch die Optik hervorgerufene Farbsäume sehe.

Herzlich,

Martin
Hans-Otto Baral, 10-08-2009 08:38
Hans-Otto Baral
Re:Troublesome operculate... (lots of pictures)
Hallo Martin und Andreas

man sieht daraus, dass es nicht reicht, nur J+ und J- zu schreiben, das führt immer wieder zu Konfusionen.

one learns od this that it is not sufficient to write merely I+ or I-, that leads again and again to confusions.

I will now be away for about 5 days, French alps with Guy and Bin Liu.

Cheers
Zotto