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28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

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 20:07

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 mystery
Chris Yeates, 18-09-2018 15:33
Chris Yeates
Bonjour tous

Normally I steer clear of this daunting group, but a recent collection with abundant apothecia was too tempting.

Apothecia densely gregarious; with a margin only when very young then plane; pale grey with some turning pale yellowish-brown. No reaction to KOH. Scale bar in photograph = 1mm.

Paraphyses with no vacuolar contents - apparently completely "empty" (hence my confusion). Scale bar in photograph = 10µm.

Asci 8-spored, IKI bb, apparently with croziers; occasionally a "Psilachnum body" was observed.

Ascospores ovoid-ellipsoid, occasionally slight fusoid, guttules as in photograph. Scale bar in photograph = 10µm.

Any suggestions very welcome.

Chris
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  • message #54680
  • message #54680
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Hans-Otto Baral, 18-09-2018 16:16
Hans-Otto Baral
Re : mollisioid mystery
Hi Chris
does the fungus also have a substrate? :-)

The living paraphyses look "empty", so logically the KOH reaction is negative.

This should be a Pyrenopeziza. The small spores appears to point to P. aquosa. That species has typically the Psilachnum-drop.
Zotto
Chris Yeates, 18-09-2018 17:44
Chris Yeates
Re : mollisioid mystery
Thanks for the quick response Zotto.

Here are photo's showing the collection site. The fungus was growing on the underside of a piece of decorticated wood - I assumed, from this area of Quercus - lying at the side of a long-disused concrete track at the edge of woodland.

I had assumed Pyrenopeziza but couldn't immediately think of lignicolous ones, and of course older works still put aquosa in Mollisia.

I think P. aquosa is definitely in the right area. I have quickly looked through the long and interesting http://www.ascofrance.com/search_forum/27917 thread, where the question of "Mollisia" dextrinospora is raised. I too think Ellis and Ellis's Mollisia aquosa is something different - the marginal cells on my fungus were only slightly larger and more enlarged than the rest of the excipulum, rather like your HB 7640. By contrast E & E's fungus has distinctly elongated marginal cells.

Best wishes

Chris
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Hans-Otto Baral, 18-09-2018 17:55
Hans-Otto Baral
Re : mollisioid mystery
Yes there were some questions.....