Very small yellow ascomycota - Forum ASCOFrance

07-03-2026 13:06

Phaeohelotium parasulphuratus ?

éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

05-03-2026 16:30

Is this Diaporthe rudis?

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

indian literature

Alain GARDIENNET

Hi forum, I'm now looking for another reference c

28-02-2026 11:05

Peziza

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

06-03-2026 17:51

Orbilia?

William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 10:07

White apothecia on pine cone

Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 19:29

Ciboria caucus?

William Slosse

Good evening everyone,On March 4, 2026, I found th

19-02-2026 17:49

Ayuda con Tarzetta sp

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

03-03-2026 20:34

Cercophora-Podospora-Arnium 210226 333 on cow dung

Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Sinensia

Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

« < 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