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08-05-2025 02:22

Francois Guay Francois Guay

I found this white, hairy ascomycete on the bark o

07-05-2025 18:29

Francois Guay Francois Guay

I found this small hyaline ascomycete on moist, de

08-05-2025 08:59

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, (España) , reco

07-05-2025 10:18

Thomas Flammer

I have found on Genistae sth. that looks like puli

05-05-2025 09:35

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Marie-Rose d'Angelo de la SociétÃ

06-05-2025 13:37

Thomas Flammer

Munk, Anders (1953). The System of the Pyrenomycet

06-05-2025 12:52

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España),  reco

06-05-2025 13:22

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España),  reco

05-05-2025 22:06

Patrice TANCHAUD

Bonsoir, il y a quelques temps, j'avais évoqué

01-05-2025 20:11

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, today I have collected a tiny ascomycete g

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Hyalopeziza on Rhododendron
Lothar Krieglsteiner, 02-08-2024 11:22
Lothar Krieglsteiner.. French Alps, 29.6.24. There is a H. rhododendricola, but I do not find much about it.
The hairs are septate and longer at the flanks, shorter and partly not at the margo. There is no notable change with the hairs in KOH. The asci are without croziers and ioidine-negative. The spores are poor in oil (some small drops per pole, hardly to get into the pictures) and measure about 7-9/2,5-3,3.
Can somebody help?
Best, Lothar
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Hans-Otto Baral, 02-08-2024 11:33
Hans-Otto Baral
Re : Hyalopeziza on Rhododendron
Hallo LotharI think H. nectrioidea is worth to compare.


Lothar Krieglsteiner, 02-08-2024 11:45
Lothar Krieglsteiner
Re : Hyalopeziza on Rhododendron
Hello Zotto,
thank you!
I had looked at your folder and was not very happy because of the very brown appearance and incrustations, and the hairs not thick-walled
After reading here:
http://www.ascofrance.fr/search_forum/33444
I see this is more a special character of your find.
And - yes, the spore size and contents, the ascus bases and the iodine-negative apex are fitting.
Well, H. nectrioidea then sounds good.
Best regards, Lothar
Hans-Otto Baral, 02-08-2024 11:54
Hans-Otto Baral
Re : Hyalopeziza on Rhododendron
I was actually sceptical with this brown find but genetically it was identical with the typical hyaline ones.
Lothar Krieglsteiner, 02-08-2024 11:59
Lothar Krieglsteiner
Re : Hyalopeziza on Rhododendron
thanks again, Zotto!
So I think I can name it H. nectrioidea (typical)
Yours, Lothar