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11-03-2026 16:48

Saccobolus minimoides ?
Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

11-03-2026 17:36

Help for Genus and Species ID
Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

08-03-2026 14:05

Helvella lacunosa
Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

09-02-2026 22:01

Sp
ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Scopinella on Dryas octopetala
Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Thyridaria sp.
Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

10-03-2026 18:08

Orange discs on Arctium
Marc Detollenaere Marc Detollenaere

Dear Forum,On stems of Arctium, I found some downy

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

Phaeohelotium parasulphuratus ?
éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

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Eurotiales on moss - teleomorph, and anamorph?
Lothar Krieglsteiner, 20-03-2024 12:34
Lothar Krieglsteineron 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

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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