Accès membres

Mot de passe perdu? S'inscrire

30-05-2025 10:20

Velutarina
Elisabeth Stöckli

Bonjour, Sur branches mortes de Salix en place (m

01-06-2025 09:37

Octospora
Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

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

« < 1 2 3 4 5 > »
Sur bois mort au bord d'un torrent
Yannick Mourgues, 12-11-2020 01:10
Yannick Mourgues
Trouvé sur bois mort très dégradé d'Abies alba, à côté et dans un torrent de ph acide.

Asques IKI+ issus de crochets.

Paraphyses cylindriques larges de 2,6-2,9 µm avec guttules.

Spores 7,8-11,8 x 2,6-3,6 µm avec Q=2,5-3,7 pour N=28.

Sous-hymenium de textura intrica.

Excipulum de textura globulosa avec des cellules colorées par un pigment intracellulaire brun de plus en plus foncé vers l'extérieur.

Une idée ?

Yannick
  • message #65850
  • message #65850
  • message #65850
  • message #65850
  • message #65850
  • message #65850
  • message #65850
  • message #65850
  • message #65850
  • message #65850
Hans-Otto Baral, 12-11-2020 08:18
Hans-Otto Baral
Re : Sur bois mort au bord d'un torrent
A Mollisia I think. You can test if the VBs in the paraphyses provoke a yellow reaction as soon as they get in contact with KOH. Various Mollisiaas do that, many others not. Is this substrate flooded after heavy rainfalls?
Yannick Mourgues, 14-11-2020 15:45
Yannick Mourgues
Re : Sur bois mort au bord d'un torrent
Thank's a lot Zotto.

The substrate is very degraded wood of abies alba at the water's edge and on a pile of branches emerging in the middle of the stream.

KOH + apo is Yellow.

Yannick
  • message #65926
Hans-Otto Baral, 14-11-2020 17:20
Hans-Otto Baral
Re : Sur bois mort au bord d'un torrent
O.k. that could somebody help who is good in Mollisia. There are species adapted to flooding by streams, but I would need to consult my folders and I know it is quite difficult. The characters of this are about those of M. cinerea but that does not turn yellow in KOH. - I must correct: your spore mesurements distinctly exceed those of M. cinerea.
Yannick Mourgues, 14-11-2020 20:24
Yannick Mourgues
Re : Sur bois mort au bord d'un torrent
There are many species with such spore's sizes and yellow apo in KOH...

Very difficult.

To be sequenced too...