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Khomenko Igor
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White apothecia on Homalothecium lutescens
Csaba Németh,
01-03-2026 15:31
Hello!I found these apothecia on Homalothecium luescens in an abandoned quarry in Hungary. Does anyone have any idea what species this might be?
asci: 50-75x6,5-9 µm
ascospores: 10-14 x 3,2-3,6 µm, septate
paraphyses without VBs
Image105143-0002.jpg
Hans-Otto Baral,
01-03-2026 16:19
Re : White apothecia on Homalothecium lutescens
The question is also which genus this might be. Surely not Bryoscyphus, because of the apical ring. Do you have an idea or a pjhoto of the excipulum?
Calycina and Allophylaria usually have VBs in the paraphyses, unlike this. A relationship with "B." turbinatus is possible. That species has crystals in the medulla and a low lipid content of the spores.
Could you clarify the ascus base for croziers?
Csaba Németh,
01-03-2026 17:25
Re : White apothecia on Homalothecium lutescens
Thanks, Zotto! I'm attaching some pictures of the excipulum. I didn't observe the presence of croziers.
Hans-Otto Baral,
01-03-2026 17:39
Re : White apothecia on Homalothecium lutescens
From the cells I guess it could be similar to B. turbinatus. For the medulla you have no observation? Do you think croziers are absent?
Michel Hairaud,
01-03-2026 18:11
Re : White apothecia on Homalothecium lutescens
Hi Csaba and Zotto,
I agree with rejecting a true Bryoscyphus of course
The spores here are obviously septate, which, as far as I can remember is not the case in the so called B. turbinatus . And the habitus is also different
It would be interesting to see more paraphyses to make sure that Calycina has also to be rejected for this collection.
Amitiés. Michel
I agree with rejecting a true Bryoscyphus of course
The spores here are obviously septate, which, as far as I can remember is not the case in the so called B. turbinatus . And the habitus is also different
It would be interesting to see more paraphyses to make sure that Calycina has also to be rejected for this collection.
Amitiés. Michel