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25-11-2025 14:24

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

24-11-2025 18:17

ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

25-11-2025 11:03

Mick Peerdeman

Hi all,One of my earliest microscopy attempts, so

29-06-2016 18:06

Elisabeth Stöckli

Bonjour,Trouvé sur branches mortes cortiquées de

24-11-2025 15:23

Arnold Büschlen

Hallo, auf einer offenen Kiesfläche am Rande ein

18-11-2025 18:26

David Malloch David Malloch

I am trying to locate the article, Müller, E. 195

23-11-2025 11:16

Bohan Jia

Hi,  I found small discs growing on dead stem of

21-11-2025 10:56

Christopher Engelhardt Christopher Engelhardt

Very small (~0,5 mm) white ascos, found yesterday

21-11-2025 15:22

Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

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mollisioid but cartilaginous disco (USA)
Andreas Gminder, 13-01-2016 07:55
Andreas Gminder

Dear collegues,


I have recieved a collection of discomycetes from USA, which were held for a Mollisia species. Already after re-hydrating them and preparing a section, it was obvious that the whole apothecium is quite rubber-like and not soft as a Mollisia.


The excipulum is brown, in KOH greyish-brown, consisting of roundish-elongate cells, and an abundant subiculum was present. The medulla is a textura with cells having thick gelatinous walls.
Asci eightspored, IKI blue
The spores are fusifirm to elongate-elliptic, in KOH non-septate, but in a water mount they all looked septate even within the asci (!), approx. 5-7(8) x 2-2,5 µm


Any ideas on the genus at least?


thank you and best regards,


Andreas

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Hans-Otto Baral, 13-01-2016 09:35
Hans-Otto Baral
Re : mollisioid but cartilaginous disco (USA)
Hi Andreas
is it impossible to get an idea of the paraphysis contents? Even if this sample is very old this must not be impossible. I assume you checked any behaviour against KOH?

The gel between the medullary cells is not that thick, is such impossible for a Mollisia?

Zotto
Andreas Gminder, 14-01-2016 06:51
Andreas Gminder
Re : mollisioid but cartilaginous disco (USA)

Dear Zotto,


the paraphyses had a refractive content and as far as I could see it was the whole length. But I didn't get the hymenium rehydrate properly, even not in KOH
KOH-reaction was negative.


The excipulum has no clear round cells, but only scattered roundish cells between unequal other cells. And a medulla of such kind I have never seen in Mollisia before, no sign of a textura intricata of thin hyphae.Already when cutting the apothecium it was completely different, like rubber and not soft as Mollisia is. I had the idea that this rubbery consistency might give an idea in which group this might belong to.


May be I should try a better section, but that has to wait ....


thank you and best regards,


Andreas

Hans-Otto Baral, 14-01-2016 09:31
Hans-Otto Baral
Re : mollisioid but cartilaginous disco (USA)
When I look at a section of, e.g., M. olivascens, I see almost no roundish cells 8see below).
But I admit, a thick-walled I cannot remember in a species of Mollisia. Anyhow I would expect that genetic data on this woud place ot there.
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