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08-06-2025 18:03

éric ROMERO éric ROMERO

Bonjour à tous, Une récolte alpestre discrète

09-06-2025 10:32

Elisabeth Stöckli

Bonjour,Trouvé sur une branche morte et décortiq

07-06-2025 15:39

Edvin Johannesen Edvin Johannesen

A friend sent me a few Betula seeds with tiny blac

08-06-2025 14:55

Edvin Johannesen Edvin Johannesen

Ascomata only ca. 1 mm, erumpent on very thin Sali

06-06-2025 12:12

Hans-Otto Baral Hans-Otto Baral

Dear all I want to ask you if you have any recent

04-06-2025 15:10

Stefan Jakobsson

Hi forum, On a herbaceous stem, possibly Aegopodi

03-06-2025 20:52

Stefan Blaser

Hello everybody, I didn't get anywhere with this

04-06-2025 14:02

Matthew Rozanoff

Good morning,I was wondering if anyone recognizes

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

30-05-2025 10:20

Elisabeth Stöckli

Bonjour, Sur branches mortes de Salix en place (m

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Pyrenomycete on Alnus glutinosa
Tomaz Vucko, 07-01-2025 05:40
Tomaz VuckoGreetings everyone!

Would perhaps someone here recognise this species I found in the recent days on Alnus glutinosa?
IKI-, CR+
Spores measure roughly: 
(32.5) 33.1 - 39.9 (45.7) × (16.5) 17.4 - 19.3 (21.9) µm
Q = (1.7) 1.9 - 2.1 (2.2) ; N = 16
Me = 36.3 × 18.4 µm ; Qe = 2
Interestingly ascus seem to be very delicate and it leaks spores, also sideways, almost as soon they are thrown into a water mount and are hard to catch as whole. There was also mild frost in the last days if that might have affected something. 
Location is Slovenia.

Best regards and a happy New Year!
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Gernot Friebes, 07-01-2025 07:27
Re : Pyrenomycete on Alnus glutinosa
Hi, Tomaz!

It reminds me of Dothivalsaria megalospora.

Best wishes,
Gernot
Jacques Fournier, 07-01-2025 09:31
Jacques Fournier
Re : Pyrenomycete on Alnus glutinosa
Hi Tomaz and Gernot, both early birds!
I agree with Gernot and I congratulte Tomaz for the quality of his illustrations, both macro- and micro-, allowing to name this fungus confidently.
The phylogenetic affinities of this taxon are questionable and still unkown. I hope someone will be interested in obtaining sequences.
All my best,
Jacques
Tomaz Vucko, 07-01-2025 13:12
Tomaz Vucko
Re : Pyrenomycete on Alnus glutinosa
Hello Gernot and Jacques!

Thanks for your replies. After some quick reading from old description of species it seems like a very good suggestion. The place of finding I have almost at home soo I will keep a close eye on them. :) 

Best regards!