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06-12-2025 00:19

Viktorie Halasu Viktorie Halasu

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Is there an up to date Anthracobia key available?T

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Buckwheat Pete

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30-11-2025 12:53

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White short-stipitate apothecia found on thin twig

30-11-2025 10:47

William Slosse William Slosse

I recently found a collection of small Peziza sp.

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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.