04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
Microscypha sp. ?
Roland Labbé,
15-04-2012 05:15
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
Hans-Otto Baral,
15-04-2012 10:42
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
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
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
Here is new photo of what we think is ectal excipulum, but not stained.
Is-it enought clear ?
Roland
Hans-Otto Baral,
16-04-2012 23:32
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
From the shape of the leaf you cannot say the host genus? Your remark The leaves are : ''Physocarpe doré''? I could not translate :-(
Zotto
Roland Labbé,
16-04-2012 23:49
Re : Microscypha sp. ?
golden ninebark Hans !
Then Microscypha or Pyrenopeziza fuckelii ?
Roland
Then Microscypha or Pyrenopeziza fuckelii ?
Roland
Yannick Mourgues,
17-04-2012 00:24
Re : Microscypha sp. ?
For Zotto :
"Physocarpe doré" = Physocarpus opulifolius
"Physocarpe doré" = Physocarpus opulifolius
Hans-Otto Baral,
17-04-2012 08:25
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
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
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