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28-10-2025 22:22

Literature request
Bernard Declercq Bernard Declercq

Hello.I'm searching for the following paper:Punith

28-10-2025 22:03

Literature request
Bernard Declercq Bernard Declercq

Hello.I'm searching for the following paper:Punith

28-10-2025 19:33

Rutstroemia firma
Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

27-10-2025 19:51

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Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

28-10-2025 15:37

Bright orange stalked asco
Carl Farmer

I'd be grateful for any suggestions for this strik

28-10-2025 11:29

Asco on Quercus-leaves
Tanja Böhning Tanja Böhning

Hello, I found this very small (ca 0,5mm) yellow

27-10-2025 00:34

Strange asco on Quercus acorn
Francois Guay Francois Guay

I found this strange species in Québec,Canada, gr

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Bonjour à tous, Avec Elisabeth Stöckli nous avo

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Sordariales sp
Jean-Luc Ranger

Bonjour, voici un ascome poussant sur crotte de la

26-10-2025 13:39

Unknown ascomycete.
Joaquin Martin

Hi,I found this fungus in a mixed forest of spruce

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Very small yellow ascomycota
Edit Szilvásy, 19-11-2012 23:43
Edit SzilvásyHi all!
I bring these specimens asking for your help.

Specimens found  on wood of ash.


Spores 10-11X3,5-4 µ


A greeting and thank you very much!


Edit


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  • message #20463
  • message #20463
Hans-Otto Baral, 20-11-2012 09:03
Hans-Otto Baral
Re : Very small yellow ascomycota
This is not easy. Would require a median section to see the ectal excipulum (gelatinized or not), and the iodine reaction of the ascus apex (IKI). Could be a Hymenoscyphus or Bisporella.

What is very small? 1 mm?

Zotto
Edit Szilvásy, 20-11-2012 11:08
Edit Szilvásy
Re : Very small yellow ascomycota
Dear Zotto,
Thank you for your attention.

Iodine reaction:  in Hungary an amateur mycologist not allowed buy Melzer reagent.


I could not make median sections, because the Ascomycota was very small cross-section 0.1 to 0.5 mm.


It seems glass like and gelatinized.


Thanks for the suggestion of looking Bisporella or Hymenoscyphus genus.


For me this is an achievement as well.
Greetings: Edit

Hans-Otto Baral, 20-11-2012 12:13
Hans-Otto Baral
Re : Very small yellow ascomycota
Thje forbid to by Melzer is surely because of the included chloral hydrate. But this substance is unfortunate also for the fungi: see my online article

http://www.gbif-mycology.de/HostedSites/Baral/IodineReaction.htm?

Maybe you can obtain iodine crystals and Kalium (potassium) iodide?

If gelatinous it should be Bisporella citrina.

Zotto
Edit Szilvásy, 20-11-2012 16:41
Edit Szilvásy
Re : Very small yellow ascomycota
Dear Zotto,

I have read the recommended article. It's very interesting and useful. I hope I'm smarter, but the chemistry is a little hard for me. :-)
Greetings: Edit
Hans-Otto Baral, 20-11-2012 17:04
Hans-Otto Baral
Re : Very small yellow ascomycota
The first trials are always the hardest, but when you have an ascomycete with a large amyloid ring you will get excited :-)

Zotto
Edit Szilvásy, 20-11-2012 22:24
Edit Szilvásy
Re : Very small yellow ascomycota
:-) I believe you..
Edit