23-10-2025 20:59
Patrice TANCHAUDBonsoir, est-ce que quelqu'un posséderait un com
20-10-2025 09:36
Nicolas VAN VOOREN
Hello.I'm searching for the following article:Bene
21-10-2025 23:13
F. JAVIER BALDA JAUREGUIHello to everyone.Did you think it could, be a pyx
22-10-2025 14:45
Lukas VerboomDear all,I collected this in the Netherlands, on t
22-10-2025 11:13
Jean-Luc RangerBonjour, Petites boules plus ou moins sphériqu
21-10-2025 21:25
Philippe PELLICIERBonjour,J'ai récolté en septembre sur une litiè
17-10-2025 18:45
Riet van Oosten
Hello, Found by Laurens van der Linde, Oct. 2025.
Pyrenopeziza-like species with 4-spored asci
Nicolas VAN VOOREN,
17-06-2010 13:39
On herbaceous stem, I found a Pyrenopeziza-like species, with asci containing only 4 spores!The dark apothecia open in wet conditions
Asci 40-44 x 5-6 µm, with crozier, 4-spored, apical ring IKI+ (bb)
Paraphyses without VB, Ø 1-2.5 µm
Spores fusoid, with small LBs, 11-16 x 2-2.5 (2.7) µm
Cells at the margin with short "hairs" (max length 25 µm), enlarged at their base.
Do you have any idea?
Nicolas VAN VOOREN,
17-06-2010 13:40
Re:Pyrenopeziza-like species with 4-spored asci
Marginal hairs...
Nicolas VAN VOOREN,
17-06-2010 13:40
Re:Pyrenopeziza-like species with 4-spored asci
Ascus and spores...
Hans-Otto Baral,
17-06-2010 13:44
Re:Pyrenopeziza-like species with 4-spored asci
Strange! Although I beleive you, I would be happy to see photos of an ascus with 4 spores. Sometimes such a feature is variable. Did you see it in every ascus? Are there any remains of small aborted spores visible?
Also a photo of a section through the apparently thick margin would be valuable.
Zotto
Also a photo of a section through the apparently thick margin would be valuable.
Zotto
Nicolas VAN VOOREN,
17-06-2010 19:15
Re:Pyrenopeziza-like species with 4-spored asci
I verify on two different apothecia, and all the mature asci I saw were containing 4 spores. I didn't observe aborted spores. I'm going to rehydrate the collection to make a photograph of an ascus.
I join a photograph of the section of the marginal excipulum (textura subglobulosa).
I join a photograph of the section of the marginal excipulum (textura subglobulosa).
Nicolas VAN VOOREN,
20-06-2010 20:08
Re:Pyrenopeziza-like species with 4-spored asci
Here is a (bad) photograph of an ascus containing 4 spores...
Hans-Otto Baral,
20-06-2010 22:53
Re:Pyrenopeziza-like species with 4-spored asci
O.k., and you have no idea of the plant?
Zotto
Zotto
Nicolas VAN VOOREN,
21-06-2010 08:05
Re:Pyrenopeziza-like species with 4-spored asci
Sorry, I don't have any idea; here is a macrophoto of the stem.
