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02-01-2026 22:48

Calycina languida ?
éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

Thysanophora?
William Slosse William Slosse

Good evening everyone,First of all, my best wishes

02-01-2026 17:43

Spores with a sheath
MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

01-01-2026 18:35

On rice-grain baited
Spooren Marco Spooren Marco

Original loamy soil aside a artificial lake.The co

31-12-2025 19:27

Baited fungus, help with ID.
Spooren Marco Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

En Rosmarinus
Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

30-12-2025 16:44

Tubercularia aff. lateritia
Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

Sordariomycetes
éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Asco brun sur renouée du Japon (Reynoutria japonica) (d'Albert Grobelny)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Starform
Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

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Didymella applanata? Small black spots on perennial stem of blackberry
Wim de Groot, 10-01-2025 11:24
We found this small black spots on perennial stem of blackberry with an interesting microscopy. I would be very thankfull for suggestions which species we have here. What strikes me is the green-coloured ascus (in water). Or is this an artifact? Maybe Didymella applanata? In pictures of that species I see small asci whereas my specimen has very wide asci.
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Björn Wergen, 12-01-2025 16:17
Björn Wergen
Re : Didymella applanata? Small black spots on perennial stem of blackberry
Hi,
this should be compared with Ploettnera exigua. The greenish parts of the fruitbody are typical, you can alos check in IKI, ascus porus should react red. 

regards
björn
Wim de Groot, 12-01-2025 16:56
Re : Didymella applanata? Small black spots on perennial stem of blackberry
Hi Björn,

I cannot find information of this species on this forum or by a google search. Do you have a link to Ploettnera exigua?

Regards, Wim de Groot
Viktorie Halasu, 14-01-2025 01:51
Viktorie Halasu
Re : Didymella applanata? Small black spots on perennial stem of blackberry
Hello,
try here: https://ascomycete.org/Portals/0/Archives/AscomyceteOrg%2003-01%2019-23.pdf or on Zotto's googledisk.
Viktorie