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18-11-2025 18:26

David Malloch David Malloch

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

18-11-2025 13:59

Nogueira Héctor

November 14, 2025 Brazuelo (León) SPAIN Hymenosc

17-11-2025 19:14

herman lambert

Apothécie discoïde 0.6 cm diam., orangeFace hymÃ

17-11-2025 21:57

Philippe PELLICIER

Bonjour,Récolté sur bois de feuillu mort dur, no

16-11-2025 21:09

Robin Isaksson Robin Isaksson

Anyone recognize this acc. to pictures.? Found on

17-11-2025 21:46

Philippe PELLICIER

Bonjour,Récolté sur bois pourrissant de feuillu

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

15-11-2025 23:22

Mario Filippa

Hello,this is what I think to be Hymenoscyphus mac

15-11-2025 20:25

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Nov. 2025

15-11-2025 09:21

Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

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Yellowish apothecias on Sorbus
Thomas Flammer, 07-07-2024 10:07
I am struggeling with some tiny yellowish apothecias I found on bark of Sorbus.
1. how can i differentiate Mollisia from Pyrenopeziza? What is microscopically the difference?
2. I searched the Internet, since I do not have any literature about Mollisia and Pyrenopeziza, except using asco-sonnenberg. Any hint is welcome.
Thanks, I hope this is an appropriate question in this high-profile forum.
Regards
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Hans-Otto Baral, 07-07-2024 10:21
Hans-Otto Baral
Re : Yellowish apothecias on Sorbus
I am not sure about the family of this fungus. Important is to study the excipulum, best in a section, but also squash mount may be helpful.

Is it hyaline or brown? Is it of globose cells or elongate?
Thomas Flammer, 07-07-2024 11:19
Re : Yellowish apothecias on Sorbus
Thanks a lot, I have added a squash image.
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Hans-Otto Baral, 07-07-2024 11:42
Hans-Otto Baral
Re : Yellowish apothecias on Sorbus
Very pale, but cells roundish.

On your first micro I see one paraphsyis. It lacks the refractive content of a Mollisia, so that group can safely be excluded.

How large are the apos, 0.3 mm?

Such "characterless" fungi are difficult to classify.
Ingo Wagner, 07-07-2024 15:32
Ingo Wagner
Re : Yellowish apothecias on Sorbus
Hello Thomas!

You can try to better represent the elements from the marginal area and the paraphyses.

Greetings
Ingo Wagner
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Thomas Flammer, 07-07-2024 20:10
Re : Yellowish apothecias on Sorbus
Tx Ingo, attached the suggested picture.
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Hans-Otto Baral, 07-07-2024 21:43
Hans-Otto Baral
Re : Yellowish apothecias on Sorbus
Woww, this changes all. Now the paraphyses contain long, strongly refractive vacuoles and the excipulum is more brownish.

The spores look lke having a few minute drops near each end.

I fear I do not know. A bit similar is Chlorosplenium chlora but that is up to 1-2 mm large.
Lothar Krieglsteiner, 10-07-2024 09:35
Lothar Krieglsteiner
Re : Yellowish apothecias on Sorbus
"It lacks the refractive content of a Mollisia, so that group can safely be excluded." ... and why not a Mollisia now? Refractive vacuolar bodies and dark globulosa?
Hans-Otto Baral, 11-07-2024 20:26
Hans-Otto Baral
Re : Yellowish apothecias on Sorbus
Hi Lotharm Chlorosplenium mighg be difficult to delimit from Mollisia s.l., so with te VBs it can actually be one, despite the minute apos. A light brown (not dark) excipulum is possible in the genus.