07-02-2023 22:28
Ethan CrensonHello friends, On Sunday, in the southern part of
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
17-02-2026 17:26
Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
Hi,
I would suggest that you have Octospora rustica-your spore dimensions fit nicely with that species. I have recently collected O. rubens from burnt ground and the spores were 16-19 x 11.5-13 and also the paraphyses tips were a bit more swollen. I've used Microfungi on Land Plants by Ellis and Ellis which may be slightly dated.
Regards,
Charles.
I agree with your determination.
Beside the colour of the apothecia, hence the species name, apos of O. rubens often (but not always) show a distinct margin whereas O. rustica does not. But, more important, on your nice pics of live material one can observe the vacuolar bodies in the paraphyses -a feature paraphyses of O. rustica do not have.
Here's some more info in case you were interested:
https://www.repository.naturalis.nl/document/569807
Cheers,
Marcel
yes, the content of paraphyses as well as colour of apothecia fit well Octospora rubens. It's nicely illustrated by Billekens. But what about the structure of ectal excipulum? In this aspect Riet's find is definitely more similar to O. rustica, at least when comparing with the illustrations from the paper mentioned above.
I also have a find from Olomouc combining paraphyses with VBs + ectal excipulum formed by textura globulosa-angularis. Zuzana
Thank you for your help and information!
With the names of Zuzana and Marcel on the first page!
Hi',
In the light of all this additional information I would concede that O. rubens is much more likely and that what I had found (apothecia more orange and paraphyses lacking vacuoles) fits much better with O. rustica.
Regards,
Charles.
Thanks again for all your help and info!
If there are no objections I'll name this find Octospora rubens.
Greetings,
Riet