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24-04-2024 21:54

éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

22-04-2024 08:54

Rafael Cabral

Bonjour à toutes et tous, Quelqu'un pourrait-il

22-04-2024 20:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon.Does anyone know this anamorph?It g

21-04-2024 14:29

B Shelbourne B Shelbourne

• Genus Brunnipila: Distinct macro and habitat,

19-04-2024 14:28

B Shelbourne B Shelbourne

Cudoniella tenuispora: Distinctive macro and habit

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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