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23-10-2024 17:27

Enrique Rubio Enrique Rubio

Hi againThese tiny apothecia (100-200 µm) were gr

25-10-2024 02:15

B Shelbourne B Shelbourne

• Very few macro characters and I initially thou

26-10-2024 16:19

Juuso Äikäs

Yesterday I found some small white Helotiales grow

25-10-2024 22:17

Daniel Ghyselinck

Hi everybody,Found in mountain area at about 1000m

20-10-2024 16:48

Albert Meek

Globose sporesca. 16um, with  many drops. On bare

25-10-2024 01:18

Juuso Äikäs

Hello, on October 16th I collected Orbilia xantho

24-10-2024 23:07

Patrice TANCHAUD

Bonsoir, récolte réalisée sous hêtres et chê

25-10-2024 00:26

Viktorie Halasu Viktorie Halasu

Hello, would anyone have Häffner's article "Reze

24-10-2024 14:39

Jean-Luc Ranger

Bonjour à tous,Découvert sur un terrain calcaire

21-10-2024 12:06

Rajamaki Martti

Hi!With many other valuable species was one Geoglo

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Yellow discomycetes 4,5 mm with short stem on twigs
Daniel Ghyselinck, 25-10-2024 22:17
Hi everybody,

Found in mountain area at about 1000m in a mixed Abies, Fagus (+ Picea) forest in France (Isère).
This yellow discomycetes looks like a Hymenoscyphus but is quite big, diameter up to 4,5 mm.

Ascus are very faintly blue at the top (2 small dots) in IKI.
Paraphyses are filled with yellow guttules in water and become dark red-brown in IKI.
Spores are +/- cylindrical, without guttules, OCL 0(1), smooth, 11 - 15 x 5 - 5,5 µm.

I didn't find anything in my litterature up to now, but I suppose it is a common spieces in mountain area.

Best regards,
Daniel


  • message #80512
  • message #80512
  • message #80512
  • message #80512
Daniel Ghyselinck, 25-10-2024 22:18
Re : Yellow discomycetes 4,5 mm with short stem on twigs
And the photo in situ
  • message #80513
Andgelo Mombert, 26-10-2024 07:26
Andgelo Mombert
Re : Yellow discomycetes 4,5 mm with short stem on twigs
Hello,
On Salix ? I think it's Hymenoscyphus conscriptus.
Daniel Ghyselinck, 26-10-2024 10:12
Re : Yellow discomycetes 4,5 mm with short stem on twigs
Thank you Andgelo,

Salix is possible, we where close to a river, and I did not collect the twig myself.
Your suggestion looks close, but I wonder if this species could have spores without nearly any OCL?
I will check again, but I didn't see any spore with one side more acute than the other, wich is normally the case for H. conscriptus...

Michel Hairaud, 26-10-2024 15:14
Michel Hairaud
Re : Yellow discomycetes 4,5 mm with short stem on twigs
Bonjour Daniel, D'accord avec Andgelo. 
De plus la forme en ciboire des apothécies est assez caractéristique de H. conscriptus. 
Dans mes récoltes documentées de cette espèce, l'OCI est très bas également. 
AmitiésMichel
Daniel Ghyselinck, 26-10-2024 18:12
Re : Yellow discomycetes 4,5 mm with short stem on twigs
Bonjour Michel,

Merci pour cette confirmation.
La forme semble effectivement bien typique d'après ce que je peux voir sur le net et dans ma doc.

Amitiés,
Daniel