Accès membres

Mot de passe perdu? S'inscrire

23-02-2026 11:22

Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

« < 1 2 3 4 5 > »
asco sp.
Yannick Mourgues, 30-01-2009 22:50
Yannick MourguesHi.

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
  • message #6529
Yannick Mourgues, 30-01-2009 22:50
Yannick Mourgues
Re:asco sp.
another pict...
  • message #6530
Yannick Mourgues, 30-01-2009 22:50
Yannick Mourgues
Re:asco sp.
Micro...
  • message #6531
Guy Garcia, 30-01-2009 23:22
Re:asco sp.
Neodasysycpha cerina ?
Yannick Mourgues, 30-01-2009 23:37
Yannick Mourgues
Re:asco sp.
Oui, voilà ! C'est ça.
Je m'étais arrêté à Lachnum cerinus/a sans trouver ce genre.
Merci Guy !
Yannick
Hans-Otto Baral, 30-01-2009 23:38
Hans-Otto Baral
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
Yannick Mourgues, 30-01-2009 23:42
Yannick Mourgues
Re:asco sp.
I'm going to try KOH.
What does it mean : "simple septate" ?
Yannick Mourgues, 30-01-2009 23:52
Yannick Mourgues
Re:asco sp.
Hairs in KOH seems to become black.
Yannick
  • message #6539
Stip Helleman, 31-01-2009 01:04
Stip Helleman
Re:asco sp.
Hi Yannick,
simple septate means without croziers, and the purplish dye comes from the excipulum.
Stip
Yannick Mourgues, 31-01-2009 01:11
Yannick Mourgues
Re:asco sp.
Thank's Stip !
Y
Hans-Otto Baral, 31-01-2009 11:10
Hans-Otto Baral
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