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13-08-2020 19:44

"Nectria" on old Ganoderma applanatum
Lothar Krieglsteiner Lothar Krieglsteiner

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

13-08-2020 21:47

Lophiostomataceae ?
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte d'une plante suffrutescen

13-08-2020 21:33

Alpine Lophiostoma
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte de Dryas octopetala, vers

13-08-2020 19:22

macroscopically similar to Camarops tubulina on spruce (Picea abies)
Pavol Palo

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

09-08-2020 07:55

minute mould on grass remains
Lothar Krieglsteiner Lothar Krieglsteiner

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

15-02-2018 08:09

Champignon imparfait sur Fallopia japonica
BERNARD CLESSE BERNARD CLESSE

Sur tige morte de renouée du Japon.Aucune idéeâ€

09-07-2020 00:39

Stamnaria sp (Equisetum ramosissimum) Ascos amiloides
Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

08-08-2020 20:54

Peziza sp. Alguna opinion?
Antonio Couceiro

Ascoma de 5cm, creciendo entre raices de Prunus la

09-08-2020 22:18

bitunicate ascomycete on wood in rivulet - Lophiostoma?
Lothar Krieglsteiner Lothar Krieglsteiner

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

09-08-2020 15:33

Diatrype Arbeit aus SWPR
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.