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17-09-2025 19:43

Lachnellula suecica ?
Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

17-09-2025 16:14

Sepultaria ?
Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Ascomycete on Polystichum proliferum
Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Marthamycetales revision published
Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Encoeliopsis rhododendri
Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Ascolichen on Blechnum?
Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Engler & Prantl, Nat. Pflanzenfam. (Ed. 2) 1938
Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Cheilymenia stercorea
Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Otidea platyspora or something else?
Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Pseudocoprotus catenipilus ???
Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

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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.