Very small yellow ascomycota - Forum ASCOFrance

01-01-2026 18:35

On rice-grain baited

Spooren Marco

Original loamy soil aside a artificial lake.The co

31-12-2025 19:27

Baited fungus, help with ID.

Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

En Rosmarinus

Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

30-12-2025 16:44

Tubercularia aff. lateritia

Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

Sordariomycetes

éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Asco brun sur renouée du Japon (Reynoutria japonica) (d'Albert Grobelny)

Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Starform

Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Propolis sp. on Pinus sylvestris

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Pyrenomycete on rosemary

Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Lamprospora ? laquelle ?

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

« < 1 2 3 4 5 > »

Very small yellow ascomycota

Edit Szilvásy, 19-11-2012 23:43

Hi 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

Hans-Otto Baral, 20-11-2012 09:03

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

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

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

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

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

Re : Very small yellow ascomycota

:-) I believe you..
Edit

Accès membres

Forum AscoFrance