09-11-2025 13:20
Josep Torres
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
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Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
Asco on branch
Thorben Hülsewig,
19-05-2018 23:46
today i found this asco on a branch (Fagus sylvatica).
The spores are 3 Micrometer in diameter.
What could that be ?
best regards,
Thorben
Stip Helleman,
20-05-2018 01:07
Re : Asco on branch
Hi THorben,
the most likely option is Hyphodiscus theioideus.
Herzlich,
Stip
the most likely option is Hyphodiscus theioideus.
Herzlich,
Stip
Hans-Otto Baral,
20-05-2018 08:24
Re : Asco on branch
I have the same idea, and I would like to know the marginal hairs as well as the Lugol reaction of the ascus apex. H. theiodeus is fungicolous, it always grows on corticioid basidios like Peniophora.
Thorben Hülsewig,
20-05-2018 12:54
Re : Asco on branch
Hi there,
that is it :)
I see also a corticioid basidio, but i didn't bother with him anymore.
Here are the marginal hair and lugol reaction pcitures.
best regards,
Thorben
Thorben Hülsewig,
21-05-2018 11:45
Re : Asco on branch
Is it normal that the lugol reaction is so various ?
Hans-Otto Baral,
21-05-2018 13:49
Re : Asco on branch
Yes, very good photo of the hairs.
The colour of the apical ring reaction simply depends on the IKI concentration (blue when low, red when high). This is type RB of hemiamyliodity.
The colour of the apical ring reaction simply depends on the IKI concentration (blue when low, red when high). This is type RB of hemiamyliodity.