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Mot de passe perdu? S'inscrire

13-08-2020 19:44

Lothar Krieglsteiner Lothar Krieglsteiner

... last week in the Eifel (Germany). It looks mac

13-08-2020 21:47

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte d'une plante suffrutescen

13-08-2020 21:33

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte de Dryas octopetala, vers

13-08-2020 19:22

Pavol Palo

Hello friends, may I ask you for help ? I would n

09-08-2020 07:55

Lothar Krieglsteiner Lothar Krieglsteiner

... maybe Molinia, in an acid bog (near Narthecium

15-02-2018 08:09

BERNARD CLESSE BERNARD CLESSE

Sur tige morte de renouée du Japon.Aucune idée

09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

08-08-2020 20:54

Antonio Couceiro

Ascoma de 5cm, creciendo entre raices de Prunus la

09-08-2020 22:18

Lothar Krieglsteiner Lothar Krieglsteiner

... the spores of this find (today, in the Eifel,

09-08-2020 15:33

Eduard Osieck

Can somebody provide a copy of GÖRKE, C. & H

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Micro-Preussia on goose dung (Branta?) - Denmark
Thomas Læssøe, 03-07-2020 17:47
see: https://svampe.databasen.org/observations/10094757

Tiny ascocarps with tiny asci (23,5-26 µm long with fairly long stipes; sp.p. 18,5-19,3 µm). Partspores 3,4 x 2,8 µm. Spores 3 (or 4celled?).

cheers


Paul Cannon, 03-07-2020 18:01
Re : Micro-Preussia on goose dung (Branta?) - Denmark
Have a look at Westerdykella (syn. Pycnidiophora). This looks like what we called W. dispersa at IMI (if it had pycnidia as well as ascomata in culture) or W. multispora (if there were only ascomata).

Best wishes

Paul
Thomas Læssøe, 03-07-2020 20:00
Re : Micro-Preussia on goose dung (Branta?) - Denmark
yes, clearly a Westerdykella but I am not sure of the species. Keys to nigra but ....

thanks


Michel Delpont, 04-07-2020 13:34
Michel Delpont
Re : Micro-Preussia on goose dung (Branta?) - Denmark
Hello Paul!

I do not know these genres, having never met them; are there species with a different number of spores per ascus? Is there a determination key?


Thank you and have a nice day.


Michel.

Paul Cannon, 04-07-2020 13:44
Re : Micro-Preussia on goose dung (Branta?) - Denmark

They may well have spores that are initially 4-celled like Preussia and Sporormiella, but if so they fragment inside the ascus, and the asci always appear multispored. They are usually only found in cultural studies.

Best wishes

Paul


Michel Delpont, 04-07-2020 16:30
Michel Delpont
Re : Micro-Preussia on goose dung (Branta?) - Denmark
Thank you Paul, very interesting!

Regards.

Michel.