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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

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

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

20-04-2024 16:02

Michel Hairaud Michel Hairaud

Bonjour,On me fait part, pour diffusion d une list

20-04-2024 09:56

Josep Torres Josep Torres

Hello.A few apothecia collected on Sunday, April 7

19-04-2024 18:32

Anna Klos

Good evening,I found this Ascobolus on wet soil an

18-04-2024 18:52

éric ROMERO éric ROMERO

Bonjour, J'ai beoin d'éclairage(s) pour ce Daldi

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Karstenia Idaei or K. rhopaloides?
Margot en Geert Vullings, 23-02-2024 16:26
We found these discs on the inside of loose bark of a dead Picea.
We think a Karstenia, could this be K. Idaei or K. rhopaloides?
Spores measured in water 37.6-58.38 x 2.9-3.8µ
Asci measured in water 71x12µ
Paraphyses thin cylindrical.

We tried pre-treating with KOH and staining with Lugol. The Ascus top is I+ ? Should be neg.

For Karstenia rhopaloides the spores are to thin.

We think we see periphysoids?
Thanks in advance,
Margot&Geert
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Hans-Otto Baral, 23-02-2024 17:36
Hans-Otto Baral
Re : Karstenia Idaei or K. rhopaloides?
No, but perhaps K. idaei?
Margot en Geert Vullings, 23-02-2024 18:06
Re : Karstenia Idaei or K. rhopaloides?
Hans-Otto, you mean no for the periphysoids?

Could it be K. idaei with ascus I+?
Hans-Otto Baral, 23-02-2024 20:46
Hans-Otto Baral
Re : Karstenia Idaei or K. rhopaloides?
I did not read your heading when I suggested K. idaei.

The periphysoids are pretty o.k. for Karstenia, but you are right, K. idaei I know without amyloid ring. In your specimen it is an exceptionally clearly amyloid ring.

I have not the time to check all my files so my answers are often spontaneous, I am sorry.
Margot en Geert Vullings, 24-02-2024 19:09
Re : Karstenia Idaei or K. rhopaloides?
Thank you very much and no sorry needed, we are always happy with your help.

In your paper of K. idaei on photo 7-II-2009-2 and 3  we also see an Lugol "swach" + reaction and on photo 13-VII-2008-2 also Lugol + reaction.

Kind regards, Margot&Geert
Hans-Otto Baral, 24-02-2024 20:25
Hans-Otto Baral
Re : Karstenia Idaei or K. rhopaloides?
Actually the 2008 find is strongly blue in the apical ring. It must be Enrique's images but I lost the info from where I got them in mid July 2008.

2009 is Gernot's, and I am not even sure if it has a ring.

Everything is possible: different species or variation within a species.

Zotto
Margot en Geert Vullings, 25-02-2024 18:18
Re : Karstenia Idaei or K. rhopaloides?
Thank you very much Zotto.