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24-12-2025 17:08

Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

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Ethan Crenson

Hello all, A friend found this Orbilia growing on

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Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

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Mirek Gryc

Hi. „I doubt it is possible to identify this ti

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Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

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Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

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Bonsoir, récolte sur un mur en pierre, apothéci

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Patrice TANCHAUD

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pyrenomycete on dead parts of foliose liverwort from Norway
Lothar Krieglsteiner, 18-08-2025 15:07
Lothar Krieglsteiner.. 20.7.25, in subarctic habital. 
The liverwort is introduced here, unfortunately without answer:

https://nafoku.de/forum/202507_0118_0001.htm
https://nafoku.de/forum/202507_0118_0002.htm
https://nafoku.de/forum/202507_0118_0003.htm

The ascus porus is strikingly blue in Baral and stays so - in Melzer (after KOH) it is reacting blue first also but hen the color is vanishing rapidly (the chloral hydrate is likely arriving later than the iodine and supresses the freaction then). 
The spores are longitudinally and transversely septate, they vary strongly in size between 25-40/9-14 µm. 

Who can provide me with a hint?
The bluing porus might point to Xylariales (?).

Yours, Lothar





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Georges Greiff, 19-08-2025 13:31
Re : pyrenomycete on dead parts of foliose liverwort from Norway
Hi Lothar,

I think it is a Protothelenella species. Fits very well.

All the best,
George
Lothar Krieglsteiner, 19-08-2025 20:51
Lothar Krieglsteiner
Re : pyrenomycete on dead parts of foliose liverwort from Norway
Hi George,
thank you very much for your determination of the genus. As I quickly see, there are 11 species (I looked in the Index of Fungi). I will see if I can obtain literature to get still closer.
Yours, Lothar
Lothar Krieglsteiner, 19-08-2025 20:51
Lothar Krieglsteiner
Re : pyrenomycete on dead parts of foliose liverwort from Norway
Hi George,
thank you very much for your determination of the genus. As I quickly see, there are 11 species (I looked in the Index of Fungi). I will see if I can obtain literature to get still closer.
Yours, Lothar