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01-06-2025 09:37

Octospora
Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

30-05-2025 10:20

Velutarina
Elisabeth Stöckli

Bonjour, Sur branches mortes de Salix en place (m

20-05-2025 22:15

Asco at the base of decaying fern
Francois Guay Francois Guay

I found this ascomycete at the base of a dead fern

30-05-2025 17:54

Petit disque poilu sur Urtica
Louis DENY

Hello forum!Touvé près de Belfort, altitude 350m

31-05-2025 00:51

Orbilia with fusiform spores
Ethan Crenson

Hello, Last week in New York City this Orbilia wa

30-05-2025 14:40

Black ascomycete.
Josep Torres Josep Torres

Hello.An ascomycete from last May 10th, sprouting

30-05-2025 17:55

Petit disque poilu sur Urtica
Louis DENY

Hello forum!Touvé près de Belfort, altitude 350m

30-05-2025 12:53

Discomycete on Pellia (liverwort)
Gernot Friebes

Hi,I'm struggling to find a name for this species.

17-05-2025 18:52

Gloeotinia sp. ?
Francois Guay Francois Guay

I found this interesting asco in Quebec,Canada las

28-05-2025 21:19

Conidiospores on rose twig and twig on Sambucus Nigra
Terje Kristiansen

The rose is intertwined with black elderberry.Prob

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Hymenoscyphus
Yannick Mourgues, 31-08-2009 21:07
Yannick MourguesBonsoir.

J'aimerai votre avis sur cet Hymenoscyphus trouvé sur tiges mortes de Rubus.

Spores : 20x5 um environ bien qu'il n'y en avait que très peu. 1 cloison avec 2 guttules dans chaque partie. De forme "scutuloide".
Asques IKI+, 100-110x6-10 um, boucles +
paraphyses à sommet arrondi, septées, larges de 3-4 um, remplies de guttules réfringentes

Yannick
  • message #8857
Yannick Mourgues, 31-08-2009 21:08
Yannick Mourgues
Re:Hymenoscyphus
autre vue avec exemplaires plus âgés...
  • message #8858
Yannick Mourgues, 31-08-2009 21:09
Yannick Mourgues
Re:Hymenoscyphus
vue de profil
  • message #8859
Yannick Mourgues, 31-08-2009 21:09
Yannick Mourgues
Re:Hymenoscyphus
paraphyses...
  • message #8860
Yannick Mourgues, 31-08-2009 21:24
Yannick Mourgues
Re:Hymenoscyphus
Hymenoscyphus calyculus serait un bon candidat. Non ?
Hans-Otto Baral, 01-09-2009 00:04
Hans-Otto Baral
Re:Hymenoscyphus
On Rubus I would not expect H. calyculus. Do you have a photo of the spores? Also the excipulum on the flanks should be consulted whether prismatica (calyculus) or globulosa (epiphyllus and relatives).

Zotto
Yannick Mourgues, 01-09-2009 00:22
Yannick Mourgues
Re:Hymenoscyphus
No, I haven't any picture of spores because they were too rare and I wasn't able to make a picture.
I will see excipulum textura.
Yannick
Yannick Mourgues, 01-09-2009 00:31
Yannick Mourgues
Re:Hymenoscyphus
Excipulum has a textura globulosa.
So, can we conclude Hymenoscyphus epiphyllus groups ?
Yannick
Yannick Mourgues, 01-09-2009 00:31
Yannick Mourgues
Re:Hymenoscyphus
Excipulum has a textura globulosa.
So, can we conclude Hymenoscyphus epiphyllus groups ?
Hymenoscyphus or Phaeohelotium ?
Yannick
Hans-Otto Baral, 01-09-2009 15:16
Hans-Otto Baral
Re:Hymenoscyphus
Yes, you can say Phaeohelotium if one prefers to separate that genus. H. epiphyllus or H. monticola would be a choice. The multiguttulate paraphyses would tell for epiphyllus. Phaeohelotium do not have scutuloid spores, however. You cannot say which end of the spores is the upper end.

Zotto
Yannick Mourgues, 01-09-2009 18:14
Yannick Mourgues
Re:Hymenoscyphus
Thanks again Zotto !
Yannick