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25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

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Microscypha sp. ?
Roland Labbé, 15-04-2012 05:15
Bonjour !
Voici un mini disco qui a poussé sur une feuille morte de Physocarpe doré
Peut-être un Microscypha ?

Merci de nous aider encore.
Amitiés,  Roland

Données :

Substrat : feuille morte

Spores étroitement ellipsoïdes, légèrement atténuées-obtuses à un bout, lisses, avec rares petites guttules difficiles à préciser, 6-8 x 1,5-2 µm, 6,9 x 1,9 µm en moyenne, Q = 3,63
Asques à 8 spores bisériées, avec crochet à la base et appareil apical amyloïde, à contenu dextrinoïde, 22-41 x 5-6 µm
Paraphyses cylindriques, parfois légèrement élargies ou atténuées-obtuses à l'apex, septées et fourchues à la base, à contenu très difficile à préciser (rares petites guttules vers la base ?), 22-45 x 1,5-2 um, ne dépassant pas les asques ou très peu
Medulla en textura celluleux ? Difficile à préciser, car dans une substance gélatineuse
Excipulum ectal en textura porrecta
Poils marginaux cylindriques, finement échinulés, multiseptés, à section apicale mesurant jusqu'à 45 x 4 um, bruns
Poils externes semblables, mais plus courts, bruns

  • message #18180
  • message #18180
Hans-Otto Baral, 15-04-2012 10:42
Hans-Otto Baral
Re : Microscypha sp. ?
As far as I can discern the minute details, you have Pyrenopeziza fuckelii = Microscypha monticola. The spores are a bit short, however (typical is 9-10 x 2-2,5 µm).

The ectal excipulum should be of a hyaline t. globulosa with brown external patches.

The species seems restricted to leaves of Salix. On Betula leaves occurs something very similar: Pyrenop. betulicola

Was this found recently or the last year?

Zotto
Roland Labbé, 15-04-2012 18:25
Re : Microscypha sp. ?
Hi Hans !

The leaves are :  ''Physocarpe doré''
We will check again the ectal excipulum.

Roland
Roland Labbé, 16-04-2012 21:18
Re : Microscypha sp. ?
Hans,

Here is new photo of what we think is ectal excipulum, but not stained.
Is-it enought clear ?


Roland
  • message #18192
Hans-Otto Baral, 16-04-2012 23:32
Hans-Otto Baral
Re : Microscypha sp. ?
Voilá! Looks quite similar as in my files. Here on Salix leaves from Denmark.

From the shape of the leaf you cannot say the host genus? Your remark The leaves are :  ''Physocarpe doré''? I could not translate :-(

Zotto
  • message #18194
Roland Labbé, 16-04-2012 23:49
Re : Microscypha sp. ?
golden ninebark Hans !

Then Microscypha or Pyrenopeziza fuckelii ? 

Roland
Yannick Mourgues, 17-04-2012 00:24
Yannick Mourgues
Re : Microscypha sp. ?
For Zotto :
"Physocarpe doré" = Physocarpus opulifolius
Hans-Otto Baral, 17-04-2012 08:25
Hans-Otto Baral
Re : Microscypha sp. ?
I did not know this plant, thanks Yannick!

The type of Microscypha is M. grisella = M. arenula, and I do not believe that this species on ferns is mollisiaceous, mabye rather related to Urceolella.

The present fungus P. fuckelii s.l. fits quite well in Pyrenopeziza, in my opinion.

Zotto
Roland Labbé, 17-04-2012 14:05
Re : Microscypha sp. ?

That's what I want to know Hans !
And thank you for your help,

Roland  

Hans-Otto Baral, 18-05-2012 21:03
Hans-Otto Baral
Re : Microscypha sp. ?
Dear Roland

I must apologize, a friend (Ingo Wagner) drew my attention to the warty hairs of your fungus, and that it could rather be a Fuscolachnum instead of a Pyrenopeziza. Apparently F. misellum from Rubus leaves is not very different. Considering that Physocarpus is also a Rosaceae, we imagine that your fungus might be in fact F. misellum. ?


Zotto