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16-02-2026 00:05

Literature request

Maren Kamke

Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Sarcoscypha coccinea or austriaca?

Joeri Belis

between leaf litter on twig in young salix growth.

14-02-2026 22:45

Vexillomyces/Claussenomyces

Tomaz Vucko

Tomaz Vucko

Hy!I would ask for some help determing this specie

13-02-2026 03:30

Unknown near Pseudohalonectria

Tomaz Vucko

Tomaz Vucko

Hello! I found these immersed perithecia on a stic

15-02-2026 20:28

Ã©ric ROMERO

éric ROMERO

Bonjour tous, Un Mollisia qui me pose problème..

14-02-2026 10:58

Asco blanc sur Diatrype

Bernard CLESSE

Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

13-02-2026 18:05

Tiny disc on Acer

Margot en Geert Vullings

On February 9, 2026, we found these small hairy di

02-02-2026 21:46

Dark disc on Populus

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

15-02-2026 04:32

Lentomitella like, aseptate?

Tomaz Vucko

Tomaz Vucko

One more specimen that is giving me some descent a

09-02-2026 14:46

Cistella granulosella of Hyphodiscus incrustatus?

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

Eurotiales on moss - teleomorph, and anamorph?

Lothar Krieglsteiner, 20-03-2024 12:34

Lothar Krieglsteiner

on 26.10.2023 I found a yellow mould growing on the moss Hypnum cupressiforme in the Bavarian Forest (Germany). I only noticed it because I looked for Luteodiscus and something like this, and because of its nice yellow cushions I decided to take it with me. Only at home, under the bino, I noticed that there were small blackish brown spheres, and so my first preparation was this.

The roundish asci and the peculiar form of the spores (like a burger) guided me to the order Eurotiales.
So - I hoped the yellow mould would be a Penicillium or Aspergillus, but it does not at all look this way. The curled hyphae (sporophores) are finely warted, the spores very small.

David Malloch who I contacted in December was so kind to provide me with diverse literature on this topic. But I fear I have no good result - at least not for the premise that teleomorph and yellow anamorph belong together.
Possibly they don't.

Who has thoughts that can bring me further?
Yours, Lothar

(1 collection - 2 detail teleomorph - 3-14 micros teleomorph in KOH j- 15,16 detail of anamorph (and teleomorph) - 17-18 micros anamorph in KOH - 19-29 micros anamorph in Kongo-NH3 - 30-35 micros anamorph in KOH plus Phloxin

David Malloch, 20-03-2024 14:56

David Malloch

Re : Eurotiales on moss - teleomorph, and anamorph?

Hi Lothar,

Fascinating!

I am not sure what this is. I think you may have two species there. As you suggested, the ascospores resemble those of many Aspergillus species, although the ascomata seem rather dark for most members of that family. The lack of an Aspergillus anamorph is also puzzling.

The yellow species, if it is different, reminds me of an Arthroderma or maybe a Pseudogymnoascus. It is difficult to tell from the photograph if those small spores are ascospores or conidia, but I suspect they are conidia, something like Geomyces.

Probably the best way to resolve this is to isolate the two species in culture.

David

Lothar Krieglsteiner, 20-03-2024 15:03

Lothar Krieglsteiner

Re : Eurotiales on moss - teleomorph, and anamorph?

Hello David,
thank you very much for your very quick and detailed response!
I am not able nor have the opportunity to make cultures. So - if you want I can send you the specimen. It is not copious, and I don`t know if it is still alive for culturing. Likely, I heated it for drying (? - I do not remember).
I am quite sure that the spores of the yellow "mould" are conidia, at least no ascospores.
Perhaps again write to me here how we could go on: lkrieglsteiner@t-online.de
Best regards, Lothar