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31-08-2025 17:32

Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

31-08-2025 19:41

Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

31-08-2025 14:34

Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

24-08-2025 21:59

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

27-08-2025 12:02

Pavol Palo

Hello dear friendsI would like to ask for sharing

25-08-2025 17:37

François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

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Roseodiscus aff. formosus
Gernot Friebes, 22-08-2021 10:52
Hi,

I collected this discomycete at approx. 2400 m a.s.l. and I think it has strong similarities with this Roseodiscus aff. formosus: https://drive.google.com/drive/folders/0B5SeyOEkxxZhXzZkNXRMSDFIVzA?resourcekey=0-XZegZviwmZP_xJiG2vNF5g

Spores measure about 10–13 x 3–3.5 µm, croziers are present, the asci are IKI bb.

Just wanted to share this interesting collection.

Best wishes,
Gernot
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DirkW, 22-08-2021 12:02
DirkW
Re : Roseodiscus aff. formosus
hi gernot,

nice find! I hadn't expected it on such altitute!

ceratodon purpureus is obvious ...

there seem to be two variants, which are imediately red or blue in lugol ...?

best wishes

dirk
Gernot Friebes, 22-08-2021 15:53
Re : Roseodiscus aff. formosus
Thank you, Dirk.
Yes, Zotto mentioned in this forum that Enrique's collection (with asci IKI bb) differed in the ITS compared to typical R. formosus, so maybe we are dealing with an undescribed species here.

Best wishes,
Gernot
Enrique Rubio, 22-08-2021 18:21
Enrique Rubio
Re : Roseodiscus aff. formosus
Hi Gernot
Here are my ITS and LSU sequences of this Roseodiscus
https://www.centrodeestudiosmicologicosasturianos.org/?p=29418
Enrique
Hans-Otto Baral, 23-08-2021 09:23
Hans-Otto Baral
Re : Roseodiscus aff. formosus
I agree. Is the moss also Ceratodon? It seems so.

Your spore measurements are not really concordant with the pics, either the spores are longer or narrower. Is there a scale to check?

Zotto
Gernot Friebes, 24-08-2021 14:24
Re : Roseodiscus aff. formosus
Thank you for the link, Enrique!

The moss has been confirmed as Ceratodon by a colleague who is a bryologist (a Bryum was also very close).

It is well possible that I did not cover the full spore size range since I only measured a few spores. Unfortunately I do not have a scale since I used someone else's microscope.

Best wishes,
Gernot
Hans-Otto Baral, 24-08-2021 17:32
Hans-Otto Baral
Re : Roseodiscus aff. formosus
thanks Gernot. I assume this sample is from the Alps?
Gernot Friebes, 24-08-2021 17:55
Re : Roseodiscus aff. formosus
Yes, from Vorarlberg (Kreuzjoch, also called Krüzjoch).