
21-05-2025 17:28
Bonjour Tous, Avec la bonne fiche cette fois (mer

19-05-2025 09:42
Hello.An ascomycete photographed on April 20, spro

21-05-2025 08:31
Reddish-brown, grain-like ascomata, measuring 0.7â

20-05-2025 22:15

I found this ascomycete at the base of a dead fern

20-05-2025 21:36

I found this Mollisia sp. on a submerged herbaceou

16-05-2025 05:47

I found this super tiny hyaline asco on fir needle
Drepanopeziza populorum?
Garcia Susana,
02-03-2016 08:52
I have found this ascomycete growing in leaves of Populus nigra.
Size between 150-250 um in diameter. Subglobosa form, immersed in the substrate, erumpent, blackish brown color.
I think Drepanopeziza populorum, but I have no documentation.
You can confirm or refute the determination?
Â
Thank you, greetings
Susana
Hans-Otto Baral,
02-03-2016 09:26

Re : Drepanopeziza populorum?
Dear Susana
This is obviously a Drepanopeziza! In Rimpau 1962 I see that D. tremulae has spores over 3:1 l/w ratio, while D. populorum max. 3:1. Apothecia should be hemispherical and over 200 µm diam. and spores over 12 µm long in D. populorum, so I would agree. I assume that the asci are always amyloid in this genus.
This is obviously a Drepanopeziza! In Rimpau 1962 I see that D. tremulae has spores over 3:1 l/w ratio, while D. populorum max. 3:1. Apothecia should be hemispherical and over 200 µm diam. and spores over 12 µm long in D. populorum, so I would agree. I assume that the asci are always amyloid in this genus.
Garcia Susana,
02-03-2016 12:43
Re : Drepanopeziza populorum?
Gracias, Zotto
Un saludo
Un saludo