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11-05-2025 10:22

Karl Soler Kinnerbäck

Found on moist Betula wood dipped in freshwater st

18-05-2025 16:49

François Bartholomeeusen

Dear forum members,On cow dung, between fruiting b

19-05-2025 14:34

David Chapados David Chapados

Hi, I'm trying to find the species of this specim

19-05-2025 09:42

Josep Torres Josep Torres

Hello.An ascomycete photographed on April 20, spro

19-05-2025 10:00

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España) , recol

19-05-2025 10:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España) , recol

19-05-2025 10:00

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España) , recol

16-05-2025 05:47

Francois Guay Francois Guay

I found this super tiny hyaline asco on fir needle

18-05-2025 11:03

Castillo Joseba Castillo Joseba

Mer mandan el material seco de Galicia (España),Â

18-05-2025 11:07

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia,  (España)

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Hymenocyphus or Rutstroemia
Pavel Jiracek, 08-10-2024 13:44
I think this is R.bolaris. How can I verify that and eliminate Hymenocyphus?

On a piece of unidentified wood (Alnus, Crataegus?), Central Scotland.

Spores 16x5, asci 130-140x10-11
Fruit bodies up to 8 mm across.

Thanks
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  • message #80326
  • message #80326
  • message #80326
  • message #80326
Hans-Otto Baral, 08-10-2024 17:37
Hans-Otto Baral
Re : Hymenocyphus or Rutstroemia
Clearly a Hymenoscyphus, and it looks much like the common H. subferrugineus.
Pavel Jiracek, 08-10-2024 18:20
Re : Hymenocyphus or Rutstroemia
Thanks, Hans-Otto,
Can you, please, share what made you identify it? Macro micro or both?
It is large, 8mm.
Hans-Otto Baral, 09-10-2024 20:25
Hans-Otto Baral
Re : Hymenocyphus or Rutstroemia
You can look into my folders, I have a folder "Hymenoscyphus calyculus-group".

In a wide sense this is H. calyculus, but I learned by type studies that H. subferrugineus (= Helotium broomei) fits what I often found, whereas H. calyculus remained a very difficult species which I did not see since again a long time.

H. subferrugineus has a bit shorter, more cylidrical (less scutuloid) spores.

My article on this is regrettable still unfinished.
Pavel Jiracek, 09-10-2024 20:34
Re : Hymenocyphus or Rutstroemia
Thank you again. I'll check your folders.