12-07-2025 16:45
Thierry Blondelle
Bonjour à tous,J'avais d'abord pensé à des stro
05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
02-07-2025 18:45
Elisabeth StöckliBonsoir,Sur feuilles d'Osmunda regalis (Saulaie),
04-07-2025 20:12
Josep Torres
Hello.A fungus growing on the surface of a trunk o
20-06-2025 08:33
Josep Torres
Hello.Small, blackish, mucronated surface grains s
28-06-2025 16:00
Josep Torres
Hello.A tiny fungus shaped like globose black grai
On Magnolia grandiflora bark
Elsa Sousa,
29-07-2017 17:04
(51) 60.3 - 69.7 (76.6) × (8.4) 9.6 - 11.9 (12.6) µm
Q = (5.3) 5.31 - 7.3 ; N = 4
Me = 65.2 × 10.6 µm ; Qe = 6.4
Is it possible any help/clue?
Thank you very much.
Elsa Sousa
Paul LEROY,
29-07-2017 18:33
Re : On Magnolia grandiflora bark
Bonjour,
Ceci est apparemment: Pseudotrichia viburnicola (P.Crouan & H. Crouan) Rossman
Paul
Ceci est apparemment: Pseudotrichia viburnicola (P.Crouan & H. Crouan) Rossman
Paul
Martin Bemmann,
29-07-2017 18:34
Re : On Magnolia grandiflora bark
Hi Elsa,
pictures are blurred. But could it be Pseudotrichia viburnicola? Better pictures available?
What do other colleagues think, familiar with this fungus?
Portugal would be no problem for the distribution of this omnivorous species, au contraire.
Regards
Martin
pictures are blurred. But could it be Pseudotrichia viburnicola? Better pictures available?
What do other colleagues think, familiar with this fungus?
Portugal would be no problem for the distribution of this omnivorous species, au contraire.
Regards
Martin
Martin Bemmann,
29-07-2017 21:20
Re : On Magnolia grandiflora bark
Well, Paul had the same idea. Would you mind to send me the collection data (date and site)? I am recording all informations regarding this species. This would be a "first" to Portugal.
Regards
Martin (martin.bemmann@gmx.de)
Regards
Martin (martin.bemmann@gmx.de)
Elsa Sousa,
29-07-2017 23:00
Re : On Magnolia grandiflora bark
Hi, thank you both, Paul and Martin,
After reading something about Pseudotrichia viburnicola, I think you're right!
I have a very small sample, and few pseudothecia, so I didn't want to waste it, before I post this message. I can repeat micro now, but the fungus could be old, as I didn't find any asci on this first micro.
Location and Date: Riba d'Ave (Vila Nova de Famalicão); 21/07/2017
Thank you guys, you're amazing :)
Regards
Elsa
After reading something about Pseudotrichia viburnicola, I think you're right!
I have a very small sample, and few pseudothecia, so I didn't want to waste it, before I post this message. I can repeat micro now, but the fungus could be old, as I didn't find any asci on this first micro.
Location and Date: Riba d'Ave (Vila Nova de Famalicão); 21/07/2017
Thank you guys, you're amazing :)
Regards
Elsa
Martin Bemmann,
29-07-2017 23:45
Re : On Magnolia grandiflora bark
Thank you for the data!
Elsa Sousa,
30-07-2017 23:57
On Magnolia grandiflora bark
New micro
Paul LEROY,
01-08-2017 15:17
Re : On Magnolia grandiflora bark
Cette photo est peu différente de la précédente et je maintiens: Pseudotrichia viburnicola
Pour vérification supplémentaire, prendre un peu de la substance jaune-orangé présente à l'ostiole et la mettre dans une solution aqueuse d'acide lactique. La réaction doit-être pourpre-rosâtre.
Cette espèce n'est pas inféodée à un hôte strict, je l'ai trouvée sur différents supports ligneux: arbres, arbustes, arbrisseaux.
Paul
Pour vérification supplémentaire, prendre un peu de la substance jaune-orangé présente à l'ostiole et la mettre dans une solution aqueuse d'acide lactique. La réaction doit-être pourpre-rosâtre.
Cette espèce n'est pas inféodée à un hôte strict, je l'ai trouvée sur différents supports ligneux: arbres, arbustes, arbrisseaux.
Paul
Elsa Sousa,
01-08-2017 18:42
Re : On Magnolia grandiflora bark
Dear Paul,
Thank you for your suggestion and opinion. I do not have lactic acid. On last photo I show a change of colour to purple after NaOH (I do not have KOH), and that's all I can do.
Regards
Elsa
Thank you for your suggestion and opinion. I do not have lactic acid. On last photo I show a change of colour to purple after NaOH (I do not have KOH), and that's all I can do.
Regards
Elsa