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27-07-2022 22:36

Orbilia on Viburnum
Philipp Eschmann Philipp Eschmann

Grüezi I found this Orbilia on Viburnum lantana.

28-07-2022 12:35

Dothidotthia ?
Andgelo Mombert Andgelo Mombert

Bonjour à tous, Sur branche morte cortiquée de

28-07-2022 11:34

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Filip Fuljer Filip Fuljer

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Mirek Gryc

Hello allDear forum members, are my suspicions cor

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Mollisia
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

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Byrain

I found this mold growing on a old and dried out A

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Amphosoma resinicola
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Paper request
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Penicillium cf purpurogenum
Stephen Martin Stephen Martin

Hello, I recently found a mould growing on a wine

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Orbilia on Viburnum
Philipp Eschmann, 27-07-2022 22:36
Philipp EschmannGrüezi

I found this Orbilia on Viburnum lantana. Might this be O. ovalis or am I completely misled? According to the monograph, it was not found on Adoxaceae yet.


The spores in the picture measure 3.2 - 3.7 - 4.3 x 3.0 - 3.1 - 3.3µm Q avg = 1.2


Thanks in advance and best regards
Philipp

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Hans-Otto Baral, 28-07-2022 09:15
Hans-Otto Baral
Re : Orbilia on Viburnum
Wonderful spore photos! What I miss is a closeup of the asci and paraphyses. The latter seem to be capitate without prominent exudate. There is no ascus apical thickening?

I also arrive at ovalis, but the spores are too small. I measured 3-3.7 x 2.8-3.1, and on a photo with low resolution 3.8-4.5 x 2.5-3.

In sections Orbilia or Ovoideae I do not see a match.

Zotto
Philipp Eschmann, 28-07-2022 21:34
Philipp Eschmann
Re : Orbilia on Viburnum
Hi Zotto

I don't have a steady hand tonight and didn't manage to get good photos. I will try again at the weekend...

But I guess you're right, asci without apical thickenig, paraphyses capitate without prominent exudate. So this points to another section?



Philipp
Hans-Otto Baral, 28-07-2022 21:45
Hans-Otto Baral
Re : Orbilia on Viburnum
The spore bodies point to series Ovales, but it could be a new species I fear.