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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.

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

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Unknown species on equisetum species
Ralph Vandiest, 10-10-2014 22:16
Ralph Vandiest

Hello,


I found this species in large numbers on some kind of equisetum. Size 0,35mm high, 0,25mm wide. Asci 70x10? => didin't see acsi edges. Spores 3 septated 21/27x4/5µm. Any suggestions?


Regards,


 


Ralph

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Christian Lechat, 11-10-2014 04:25
Christian Lechat
Re : Unknown species on equisetum species
Hi Ralph,
did you check changing of colour in lactic acid?

Regards,
Christian
Alain GARDIENNET, 11-10-2014 06:51
Alain GARDIENNET
Re : Unknown species on equisetum species

Yes, Christian is thinking at Gibberella. A vertical section will show the bluish-purple color of the peridium becoming dark purple in KOH and red in lactic acid, is it exact Christian ?


I think it's not a strict equisiticolous species.


Alain

Ralph Vandiest, 11-10-2014 12:39
Ralph Vandiest
Re : Unknown species on equisetum species
Hello Christian & Alain,

I have no lactid acid or KOH, (only so far Lugol, Melzer, Congo-R and Blue cotton), but I made a section and indeed its deep purple/blue coloured. Is it necesarry for determination to test with KOH? If you take into account 3-septated (hyaline) spores that are up to 5µm wide then I arrive at Gibberella zeae (not taken into account the few spores that where longer than 25µm (up to 27µm).What do you think?

regards,


Ralph
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