23-10-2025 20:59
Patrice TANCHAUDBonsoir, est-ce que quelqu'un posséderait un com
24-10-2025 14:50
Riet van Oosten
Hello, Found by Laurens van der Linde, Oct. 2025
24-10-2025 03:11
Francois Guay
I found this fungus growing on decaying conifer wo
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
Strong KOH+ yellow reaction in Peziza
Perz Piotr,
19-09-2006 00:02
I have collected this species, and amyloid ascus apex tells me, this is Peziza (Peziza atrospora ??).
I does not have experience with this Peziza and three things are strange for me.
1. Hymenium is coverered by red/brown/purpur gel, KOH- and IKI-
2. On ectal excipulum are hyaline, thin-walled, smooth, 0-2 septate hairs, 50-100µm x 5-12µm, some with hyaline gelatinous exsudate.
3. Here is very strong, for a long time KOH+ reaction. When added KOH the whole excipulum, medulla und hymenium going strong yellow (like paraphyses in Mollisia rosae).
Is this KOH reaction normall for this (or also other) Peziza ? And this gel on hymenium? And the hairs ?
best wishes
Pimpek
Perz Piotr,
19-09-2006 07:25
Micro 001 - Gel on hymenium
Micro 001 - Gel on hymenium
Perz Piotr,
19-09-2006 07:26
Re:Strong KOH+ yellow reaction in Peziza
Micro 002 - hairs
Perz Piotr,
19-09-2006 07:26
Re:Strong KOH+ yellow reaction in Peziza
Micro 003 - yellow KOH reaction
Jacques Trimbach,
19-09-2006 16:18
Re:Strong KOH+ yellow reaction in Peziza
Un Pachyella ? ? ?
Nicolas VAN VOOREN,
20-09-2006 18:48
Re:Strong KOH+ yellow reaction in Peziza
Pourrait-on avoir des données microscopiques plus complètes (spores notamment) ? Avec si possible un dessin car personnellement je ne distingue rien sur ces photos qui aide à la détermination...
Perz Piotr,
20-09-2006 23:20
Re:Strong KOH+ yellow reaction in Peziza
Hi Jacques & Nicolas,
Currently I'm waiting for spore print. Spores are with grob-ornamentation, w/o apiculi, with 1 or 2 rops of oil. When I have some free spores then I will make a good drawnings.
Pimpek
Currently I'm waiting for spore print. Spores are with grob-ornamentation, w/o apiculi, with 1 or 2 rops of oil. When I have some free spores then I will make a good drawnings.
Pimpek
Perz Piotr,
23-09-2006 00:31
Re:Strong KOH+ yellow reaction in Peziza
Hi everybody,
My ?Pachyella (?Peziza) is fully fine mature and I have a lot o free, mature spores on glass :)
Here is a table in full resolution: http://wwkk.mikologia.pl/temporary/ascofrance/20060917_006.jpg
My ?Pachyella (?Peziza) is fully fine mature and I have a lot o free, mature spores on glass :)
Here is a table in full resolution: http://wwkk.mikologia.pl/temporary/ascofrance/20060917_006.jpg
NC NC,
25-09-2006 15:48
Re:Strong KOH+ yellow reaction in Peziza
Certainly seems to be a Pachyella. A section through the margin is your best bet in understanding the difference between Peziza and Pachyella. See the papers by Pfister. Several species have warted ascospores.
Dick
Dick
Jacques Trimbach,
26-09-2006 19:15
Re:Strong KOH+ yellow reaction in Peziza
cf. Pachyella adnata (Berk.& Curt.) Pfister . Verifier la présence de " hyphoïd hairs" sur l'excipulum ectal, beignant dans un gel.