09-06-2026 18:32
Camille MertensSur morceau de roseau immergé 0,5 - 0,7 mm de dia
08-06-2026 10:16
Spooren Marco
I don`t have a clou about this fungus,it is not in
08-06-2026 17:00
François BartholomeeusenGood day everyone, On June 5 2026, I collected de
07-06-2026 15:10
William Slosse
Hello everyone,On 05-06-26, I found following asco
05-06-2026 11:02
Thomas Læssøehttps://svampe.databasen.org/observations/10596691
07-06-2026 12:09
François Freléchoux
Bonjour, Voici une brève description de ce qui m
07-06-2026 12:43
Steve ClementsBojour. This was a strange find on a stick on my
12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
06-06-2026 17:44
Steve ClementsBonjour, This disco was on planed wood 3 x 1.5 cm
Pyrenopeziza/Mollisia on stems of Impatiens
Mlcoch Patrik,
06-11-2021 19:59
Hi,Please about help with determination of this collection.
Found on the dead stems of Impatiens glandulifera in the Czech Republic, 2. 9. 2021.
Marginal cells 16 x 5,5 um, excipular cells 13-15 x 10-12,5 um, dark brown. Asci IKI(+?), 35-40 X 5-7 um, paraphyses 30 x 1,8 um. Ascospores fusoid, hyaline, OCI=0-1, 7-9(9,5) x 1,7-2,5 um, Q=3,5, Me=8 x 2,3 um. KOH reaction of excipulum negative.
Any idea?? Thanks.
Hans-Otto Baral,
06-11-2021 20:53
Re : Pyrenopeziza/Mollisia on stems of Impatiens
To me this looks like a Mollisia. The crucial KOH reaction refers to the hymenium. Did you study living paraphyses? Herewith you can distinguish Pyrenopeziza which has no VBs (refractive vacuoles). To suggest a species name is difficult. M. revincta has a yellow KOH-reaction
Mlcoch Patrik,
06-11-2021 23:21
Re : Pyrenopeziza/Mollisia on stems of Impatiens
Thanks, this was microscopied in the freshes condition, what was possible.
Hans-Otto Baral,
07-11-2021 10:06
Re : Pyrenopeziza/Mollisia on stems of Impatiens
The your methods are not appropriate
- water as mountant
- don't apply pressure on the cover slip when studying sections and only very slight pressure for squash mounts.