Accès membres

Mot de passe perdu? S'inscrire

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

« < 1 2 3 4 5 > »
On Magnolia grandiflora bark
Elsa Sousa, 29-07-2017 17:04
Good afternoon,

(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

  • message #49849
  • message #49849
  • message #49849
  • message #49849
  • message #49849
Paul LEROY, 29-07-2017 18:33
Re : On Magnolia grandiflora bark
Bonjour,

Ceci est apparemment: Pseudotrichia viburnicola (P.Crouan & H. Crouan) Rossman
Paul
Martin Bemmann, 29-07-2017 18:34
Martin Bemmann
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
Martin Bemmann, 29-07-2017 21:20
Martin Bemmann
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)
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
Martin Bemmann, 29-07-2017 23:45
Martin Bemmann
Re : On Magnolia grandiflora bark
Thank you for the data!
Elsa Sousa, 30-07-2017 23:57
On Magnolia grandiflora bark
New micro
  • message #49873
  • message #49873
  • message #49873
  • message #49873
  • message #49873
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
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