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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
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The rose is intertwined with black elderberry.Prob

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Helotiale sp.
François Valade, 01-11-2010 16:04
François ValadeHello
Here is a collection from Gilbert Moyne on rotten branch of deciduous tree. I thought I can find the genus and the species with these features, but I have currently no idea.
Apothecia white, pulvinate, small (less than 1 mm). I have see no hairs.
flesh is IKI + at the bottom.
asci IKI -, "umbonate", size on the following picture is 160x16 µm
spores full with many guttules (OCI 4 or 5), 55-60x4.5-5.5 µm
paraphyses clavate.
all of them look regringent in water.
Any idea?
cheers
François
  • message #13177
François Valade, 01-11-2010 16:04
François Valade
Re:Helotiale sp.
on ascus in water 160x16µm
  • message #13179
François Valade, 01-11-2010 16:07
François Valade
Re:Helotiale sp.
spore in water
  • message #13180
François Valade, 01-11-2010 16:07
François Valade
Re:Helotiale sp.
paraphysis in water
  • message #13181
François Valade, 01-11-2010 16:08
François Valade
Re:Helotiale sp.
ascomata in IKI, bottom cells react positive
  • message #13182
Martin Bemmann, 01-11-2010 16:13
Martin Bemmann
Re:Helotiale sp.
Hi François,

this looks to me like Strossmayeria basitricha. I add a pdf of one of my finds.

Best regards
Martin
Michel Hairaud, 01-11-2010 16:15
Michel Hairaud
Re:Helotiale sp.
Salut François,

Quelle est la taille des apothécies ?
Les spores me font penser à Strossmayeria basitricha , je crois avoir posté une fiche déjà sur cette espèce dans Ascofrance.

Amitiés
Michel
Michel Hairaud, 01-11-2010 16:24
Michel Hairaud
Re:Helotiale sp.
Ma fiche semble avoir disparu .
Voici 2 photos

Michel
  • message #13185
Michel Hairaud, 01-11-2010 16:28
Michel Hairaud
Re:Helotiale sp.
Les spores avec KOH
  • message #13186
François Valade, 01-11-2010 17:31
François Valade
Re:Helotiale sp.
thank you Mickael and merci Martin
your proposal fits well with my species. I was looking for "IKI +" in Zotto' s helotiales key, but for S. basitricha it is only written IKI/MLZ light blue so nothing matched the searched pattern.
François