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19-05-2026 10:27

Patrice TANCHAUD

Bonjour, récolte récente sur terre retournée i

04-06-2026 18:39

Gernot Friebes

Hi,I collected this species in two different locat

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

04-06-2026 15:28

Tony Cumberlidge

I have recently found the very helpful European Ke

04-06-2026 10:50

François Freléchoux François Freléchoux

Bonjour, J'ai trouvé hier un petit asco observé

04-06-2026 07:02

François Freléchoux François Freléchoux

Bonjour, Voici la description d'une espèce qui p

04-06-2026 13:34

Gernot Friebes

Hi,I am interested to hear your opinion on this Le

04-06-2026 11:36

Gernot Friebes

Hi,found on Vaccinium myrtillus.Asci: IKI –, 8-s

04-06-2026 11:14

Philippe PELLICIER

Bonjour, Sur bois mort de conifère (Larix, Pinus

18-10-2022 00:12

Valencia Lopez Francisco Javier

Hola amigos/asRecientemente encontré esta colecci

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Rutstroemia henningsiana?
Marc Detollenaere, 22-09-2023 18:10
Marc DetollenaereDear Forum,

On black remains, probably stromatized tissue, of Juncus effusus, I found some long-stalked apothecia of 5-6mm long.The ectal excipulum consisted of Text prismatica, asci had an amyloid ring, no croziers were found.Spores were hyaline, fusiform and measured 17-18x4µ and contained several large guttules (OCI 4-5).Paraphyses were cylindrical.No sclerotia were found.
Could this be R henningsiana?
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Nihad Omerovic, 22-09-2023 21:35
Re : Rutstroemia henningsiana?
Macro, spores, paraphyses content don't look like in R. henningsiana; more like Hymenoscyphus.
Hans-Otto Baral, 23-09-2023 08:45
Hans-Otto Baral
Re : Rutstroemia henningsiana?
Yes, and it looks like Hymenoscyphus macroguttatus. That species must have croziers.
Lothar Krieglsteiner, 23-09-2023 09:19
Lothar Krieglsteiner
Re : Rutstroemia henningsiana?
... and by the way: the substrate is not Juncus but a dicotylous plant.
Yours, Lothar
Marc Detollenaere, 23-09-2023 10:44
Marc Detollenaere
Re : Rutstroemia henningsiana?
You are right Hans-Otto,

There are croziers but they are very hard to find
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Hans-Otto Baral, 23-09-2023 10:47
Hans-Otto Baral
Re : Rutstroemia henningsiana?
Yes!
Marc Detollenaere, 23-09-2023 10:47
Marc Detollenaere
Re : Rutstroemia henningsiana?
Lothar,

I found it in a field full of Juncus effusus but indeed, the onset of side branches does not fit with Juncus.It has to be be a dicotyle.