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08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

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

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

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Orbilia sp. on Quercus
Chris Yeates, 25-08-2014 14:59
Chris YeatesBoinjour tous
This was found on the underside of a decorticated piece of small Quercus branch.
Most paraphyses were only slightly swollen at apex and were embedded in a terminal amorphous matrtix, as can be seen in the accompanying images.
Ascospores mostly parallel-sided, curved and with a relatively short spore-body; half the ascospores lying in a reversed position.
Guidance appreciated . . .
Cordialement
Chris
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Hans-Otto Baral, 25-08-2014 15:16
Hans-Otto Baral
Re : Orbilia sp. on Quercus
Hi Chris

not easy! Could you please make a sectio through the margin? The orientation of the cels is important and also the presence of glassy processes.

Any conidia observed?

In the worst case it is O. auricolor.
Chris Yeates, 25-08-2014 17:42
Chris Yeates
Re : Orbilia sp. on Quercus
Thanks Zotto
I'll have a go, but compared to many on ASCOFrance my section-cutting skills are a bit rubbish. Looking at your 'auricolor sl.' folder it looks close . . .
I have a number of finds from yesterday to work through but I shall come back to this one.
LG
Chris