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22-08-2021 20:54

Psilachnum ? on Equisetum hyemale
Thorben Hülsewig

Hi there,yesterday I found im botanical garden Boc

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Psilachnum ? on Equisetum hyemale
Thorben Hülsewig, 22-08-2021 20:54
Hi there,

yesterday I found im botanical garden Bochum this asco on Equisetum hyemale.
My guess was a Psilachnum, but now I am not so sure.
The marginal hairs are curved (like claws) and partly glued.
There are 2 types of spores (the short and the long spores).
Both spore types are formed in the ascus, unfortunately I don't know if all asci are 8-spored.
Any idea what this could be ?

best regards,
Thorben
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Thorben Hülsewig, 24-08-2021 18:04
Re : Psilachnum ? on Equisetum hyemale
No ideas ?
Juuso Äikäs, 24-08-2021 23:12
Re : Psilachnum ? on Equisetum hyemale
Psilachnum inquilinum is a species that grows on Equisetum and has hairs thar are apically bent. Where I live it seems to be fairly common. Maybe this could be that? Zotto has earlier mentioned that there is a species with bigger spores that grows on E. hyemale. The two-sized spores are maybe a bit weird? Are they from different apos?
Thorben Hülsewig, 26-08-2021 17:17
Re : Psilachnum ? on Equisetum hyemale
Hi Juuso,

i think your idea with Psilachnum inquilinium is not bad.
The two-sized spores are in all Apos present. That's why think it belongs to the fungus.
I see also only the Psilachnum apos on these substrate and some Hydropisphaera, but no other.
I saved it as Psilachnum cf. inquilinum and wait until i can collect more material.
Maybe the other material doesn't have 2 types of spores.

best regards,
Thorben