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Mot de passe perdu? S'inscrire

23-01-2026 21:50

Looking for a paper please
Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Lichenicolous fungus on Protoparmeliopsis muralis
Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Nemania aureolutea?
Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Lichenicolous coelomycete
Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Hyphomycete on Rubus fruticosus agg.
Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Mollisina acerina ?? Turbinate and hemiamyloid
Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

15-01-2026 15:55

pyrenomycete on Quercus
Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

03-01-2026 15:36

Nomenclature
éric ROMERO éric ROMERO

Bonjour, Pouvez-vous me dire quel est le nom à p

19-01-2026 12:01

Ayuda con esta 1121
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

17-01-2026 19:35

Cosmospora aurantiicola: Gibt es dazu Literatur ?
Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

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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.