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17-09-2025 10:50

Heather Merrylees

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

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

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

03-09-2025 12:44

Enrique Rubio Enrique Rubio

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

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

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

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

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White asco on the cortex of Prunus spinosa?
Mirek Gryc, 04-06-2022 12:23

Hello
I would ask for help in identifying this little asco.
Pictures of spores are not the best quality so I would like to inform you that they usually contain two very small droplets of oil, placed polar.
Regards
Mirek
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Lothar Krieglsteiner, 04-06-2022 16:46
Lothar Krieglsteiner
Re : White asco on the cortex of Prunus spinosa?
compare Proliferodiscus pulveraceus
Hans-Otto Baral, 04-06-2022 16:57
Hans-Otto Baral
Re : White asco on the cortex of Prunus spinosa?
Indeed, and it appears to be the form with simple-septate asci. But the pale colour should also point to P. earoleucus or inspersus, I am never sure how these principally subtropical species may occur in warmer regions of Europe. I remember they have inamyloid asci, and P. pulveraceus generally amyloid asci.
Mirek Gryc, 04-06-2022 18:58
Re : White asco on the cortex of Prunus spinosa?
Thank you, both of you!
I suspected that this is something from Lachnaceae but this is a very rich group so I preferred to use your help. As always, I was not disappointed: D
Everything fits perfectly with Proliferodiscus pulveraceus. My camera slightly distorts the colors, the hymenium was not so pale, rather slightly yellowish. Yes Zotto, asci simple septa, IKI (+).
Kind regards
Mirek