16-02-2026 18:34
Thierry Blondelle
Bonjour,La micro de cet anamorphe de Hercospora su
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
16-02-2026 17:14
Joanne TaylorLast week we published the following paper where w
16-02-2026 16:53
Isabelle CharissouBonjour, quelqu'un pourrait-il me transmettre un
16-02-2026 11:53
Joeri Belisbetween leaf litter on twig in young salix growth.
14-02-2026 22:45
Tomaz Vucko
Hy!I would ask for some help determing this specie
13-02-2026 03:30
Tomaz Vucko
Hello! I found these immersed perithecia on a stic
asco sp.
Yannick Mourgues,
30-01-2009 22:50
Hi.Need help for this specie. I'm sure I have seen it in this forum next year, but not able to find it again.
Host: on decayed wood of Fraxinus.
Macro: many apo. short stipited, hymenium yellow to grey-green, Excipulum grey-green with many short yellow hairs. Base grey-green to black.
Micro :
spores 7-8,4x3,8-4,1 um, without guttules. Q=1,8-2,1.
Ascus 60-80x5-6 um, with croziers, IKI+
Paraphyses spindly, rounded at the end, with some guttules, 1-2 um widh, 70 to 100 um long.
Hairs brown, septate, more then 4 celled, 100-120x5-6 um. Becomes green With Lugol.
Have you got an idea ?
Yannick
Yannick Mourgues,
30-01-2009 22:50
Re:asco sp.
another pict...
Yannick Mourgues,
30-01-2009 22:50
Re:asco sp.
Micro...
Guy Garcia,
30-01-2009 23:22
Re:asco sp.
Neodasysycpha cerina ?
Yannick Mourgues,
30-01-2009 23:37
Re:asco sp.
Oui, voilà ! C'est ça.
Je m'étais arrêté à Lachnum cerinus/a sans trouver ce genre.
Merci Guy !
Yannick
Je m'étais arrêté à Lachnum cerinus/a sans trouver ce genre.
Merci Guy !
Yannick
Hans-Otto Baral,
30-01-2009 23:38
Re:asco sp.
Yes, je pense la même. But N. cerina MUST be simple septate, and I feel your image does not show a crozier. You can test with KOH: usually this species yields a purplish dye from the hairs into the medium.
Zotto
Zotto
Yannick Mourgues,
30-01-2009 23:42
Re:asco sp.
I'm going to try KOH.
What does it mean : "simple septate" ?
What does it mean : "simple septate" ?
Yannick Mourgues,
30-01-2009 23:52
Re:asco sp.
Hairs in KOH seems to become black.
Yannick
Yannick
Stip Helleman,
31-01-2009 01:04
Re:asco sp.
Hi Yannick,
simple septate means without croziers, and the purplish dye comes from the excipulum.
Stip
simple septate means without croziers, and the purplish dye comes from the excipulum.
Stip
Yannick Mourgues,
31-01-2009 01:11
Re:asco sp.
Thank's Stip !
Y
Y
Hans-Otto Baral,
31-01-2009 11:10
Re:asco sp.
I noted the purplish dye from the hairs (similar as in Perrotia flammea), but maybe it comes also from the excipulum. This dye is strongest at the moment when the KOH comes in contact with the fungus, later it rapidly dilutes. If you simply mount a fragment in KOH you will not see it. Therefore either put an apo under the bino in a drop of KOH during which you look what happens, or you add KOH to a water mount and look what happens as soon as the KOH reaches the fungus.
Zotto
Zotto