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07-05-2024 00:04

Ethan Crenson

A friend found these black gelatnous cups on a twi

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Good morning,At the end of an excursion in De Zegg

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Louis DENY

Bonsoir forum Sur tige de rubus fruticosus de l'a

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Hello,I failed to identify this anamorph, which gr

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Enrique Rubio Enrique Rubio

Hi again Could you help me with this paper? NANN

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François Bartholomeeusen

Dear forum members,On April 25 2024, I found one f

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Riet van Oosten Riet van Oosten

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éric ROMERO éric ROMERO

Bonjour, Une question à propos de la réaction a

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Orbilia "trechispora"?
Przemyslaw Drzewiecki, 01-12-2022 23:50
30.11.2022; Mochle near Bydgoszcz, Poland. Old horse pasture fence post. (Pinus sylvestris). Not so many.
I thought it was Orbilia xanthostigma, but the appearance of the ascospores did not fit this kind of completely. I therefore ask for aid in determining the species of the fine.
Best regards: Przemek
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Przemyslaw Drzewiecki, 02-12-2022 00:05
Re : Orbilia "trechispora"?
Cont.
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Hans-Otto Baral, 02-12-2022 09:47
Hans-Otto Baral
Re : Orbilia "trechispora"?
This is O. xanthostigma anyway. The curvature of the spores may sometimes be only slight, but we rarely saw such cases. Then the spore is especially thick.
Przemyslaw Drzewiecki, 02-12-2022 11:04
Re : Orbilia "trechispora"?
Thank you for clearing my doubts. I would say that here the curvature of the spores is rather exaggerated. :-) In the microscope slide, I saw conidia that do not match these Orbilia. Are they alien?

For those interested, I've attached last year's photo of typical O. xanthostigma ascospores.
Best regards: Przemek
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Hans-Otto Baral, 02-12-2022 11:59
Hans-Otto Baral
Re : Orbilia "trechispora"?
Yes, these are typical ascospores. The conidia might be orbiliaceous but not belonging to this species.
Przemyslaw Drzewiecki, 02-12-2022 12:22
Re : Orbilia "trechispora"?
Thank you again. It's great to get the opinion of a real expert. Greetings from Poland