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23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

07-03-2026 22:22

Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 16:30

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 19:29

William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

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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, 03-02-2026 10:30
Lothar Krieglsteiner
Re : pyrenomycete on dead parts of foliose liverwort from Norway
Today I had the time to look up this in the key of Martin Westberg (Achariana).
Best seems to fit Protothelenella sphinctrinoides.
The spores are a little bit smaller than given, but longer and above all wider than the other possible species (with superficial growth, roundish ascomata, growth on mosses, muriform spores).
The liverwort was told me to be a Cephalozia spec. in meantime.