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Hymenoscyphus on grass
Juuso Äikäs,
27-03-2023 00:36
Asci 8-spored, without croziers, IKI+(bb). Paraphyses cylindrical, full of VBs. Spores scutuloid, without setulae, measuring 22.2 - 32.5 × 5.2 - 5.6 µm.
With some hesitation, I had labelled this as H. scutula. But now I've just become aware of the species H. suspectus, which I believe this might fit. Would you agree? And does H. scutula even ever grow on Poeaceae?
Ingo Wagner,
27-03-2023 06:26
Re : Hymenoscyphus on grass
Hello!
The brown substrate looks like a herbaceous stem (Rubus?) for me.
Greetings
Ingo
The brown substrate looks like a herbaceous stem (Rubus?) for me.
Greetings
Ingo
Juuso Äikäs,
27-03-2023 08:03
Re : Hymenoscyphus on grass
Hi, I can see the photo could give that impression. But I'm fairly sure at least most of the substrate was a grass of some kind. Here's a few extra pics that might clarify the issue a bit.
Ingo Wagner,
27-03-2023 11:09
Re : Hymenoscyphus on grass
Hello Juuso!
If the substrate is grass, then that's fine with H. suspectus I think.
H. scutula I know only from herbaceous stems.
Greetings
Ingo
If the substrate is grass, then that's fine with H. suspectus I think.
H. scutula I know only from herbaceous stems.
Greetings
Ingo
Hans-Otto Baral,
27-03-2023 17:14
Re : Hymenoscyphus on grass
I agree, I only think that the concept of H. suspectus is a bit suspect, because the differences to H. scutula are difficile. Besides, H. scutula is not very clear from existing DNA, this group requires a lot of research.
Juuso Äikäs,
27-03-2023 23:13
Re : Hymenoscyphus on grass
Alright, thanks for the answers!