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28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

28-04-2026 21:53

William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

28-04-2026 21:50

Pablo Sandoval Pablo Sandoval

Hola a todos,Espero se encuentren bien. Hace mucho

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

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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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