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02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

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Cistellina-Hyphodiscus on Nemania serpens?
Marc Detollenaere, 10-03-2020 20:50
Marc Detollenaere

Dear Forum,


Sunday I found an old Nemania serpens with some small cream-coloured apothecia on it.


They had clavate hairs(19-25x6µ) with blunt tuberculate warts. No KOH reaction.


Asci measured 26-43x5.5µ and had croziers. Spores were hyaline and biguttulate(4.3-4.8x2.2µ);


Cistellina stereicola seems to be close but is associated with Stereum instead of Nemania.


Any idea?


 


Marc

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Hans-Otto Baral, 10-03-2020 21:06
Hans-Otto Baral
Re : Cistellina-Hyphodiscus on Nemania serpens?
How about ascus amyloidity?
Marc Detollenaere, 10-03-2020 23:49
Marc Detollenaere
Re : Cistellina-Hyphodiscus on Nemania serpens?
blue coloration apical apparatus with IKI
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Hans-Otto Baral, 11-03-2020 00:15
Hans-Otto Baral
Re : Cistellina-Hyphodiscus on Nemania serpens?
Hmm, I can hardly see it, but I believe.

Cistella is not eay, but why not again C. geelmuydenii, like the one of William Slosse

Zotto
Marc Detollenaere, 12-03-2020 22:34
Marc Detollenaere
Re : Cistellina-Hyphodiscus on Nemania serpens?

Thank you for your answer Zotto.


Do you think geelmuydenii is still possible although IKI only gives a mild blue coloration of the upper part of the apical apparatus. I used IKI several times but no hemiamyloidity was seen.


 


Marc

Hans-Otto Baral, 13-03-2020 07:49
Hans-Otto Baral
Re : Cistellina-Hyphodiscus on Nemania serpens?
I am not sure. How high was the concentration? Did you try KOH-pretreatment? Or Melzer? Both could clarify if the reaction is enhanced (KOH, after washing add IKI or MLZ) or suppressed (MLZ).
Marc Detollenaere, 14-03-2020 09:10
Marc Detollenaere
Re : Cistellina-Hyphodiscus on Nemania serpens?

Good morning Zotto,


I used both Melzer and Lugol after pretreatment with KOH. In Melzer a had a minimal blue coloration, in Lugol the blue was more pronounced.


I cannot tell you what the concentrations are but both products came from mykoshop.


 


Marc

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Hans-Otto Baral, 14-03-2020 10:18
Hans-Otto Baral
Re : Cistellina-Hyphodiscus on Nemania serpens?
o.k., sorry for the inconvenience. Not much clearer, probably not only because of the unsharpness.

I must admit I am not really an expert of Cistella, and my identifications are therefore only tentative. For a thorough comparison of available docus and literature I have no time.

In the type of Pezizella roseoflavida which I have restudied I noted IKI light dirty reddish, MLZ-, after KOH MLZ light blue. The hemiamyloid (dirty red) reaction is well visible on a photo collage by Matthias Reul of a sample by Torsten Richter (#7574) in my folder (no KOH-pretreatment shown).

Zotto
Marc Detollenaere, 14-03-2020 14:07
Marc Detollenaere
Re : Cistellina-Hyphodiscus on Nemania serpens?

It is clearly a very difficult group.


Thanks for your answers