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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Hyaloscyphaceae on Betula
Juuso Äikäs, 11-05-2020 19:30
I photographed these a couple weeks ago or so. They grew on a well-decayed piece of Betula sp. I kept the sample in the fridge for some time but now it has decayed away. There isn't a huge amount of data but perhaps at least the genus might be told? 

The spores measure ca. 7-9 x 2 microns, asci pores seemed faintly amyloid. I didn't manage to find any outer hairs.
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Kosonen Timo, 11-05-2020 20:07
Kosonen Timo
Re : Hyaloscyphaceae on Betula
A nice hyaline fungus. But atleast I am only guessing and actually... I can't come up with a good one. Not completely sure if this belongs to Hyaloscyphaceae. These anonymous ones dont all belong there.  In the macro I think there are something resembling hairs on the flanks, but not many and probably not easy to catch in the scope. Nothing on the rim, no hairs there.

Timo
Juuso Äikäs, 11-05-2020 20:31
Re : Hyaloscyphaceae on Betula
Ok, thanks. Some random mystery fungus then :).