27-10-2025 15:29
Michel Hairaud
Bonjour à tous, Avec Elisabeth Stöckli nous avo
26-10-2025 13:39
Joaquin MartinHi,I found this fungus in a mixed forest of spruce
27-10-2025 00:34
Francois Guay
I found this strange species in Québec,Canada, gr
26-10-2025 21:23
Juuso ÄikäsHello, a couple weeks ago I found some pale, whit
23-10-2025 20:59
Patrice TANCHAUDBonsoir, est-ce que quelqu'un posséderait un com
24-10-2025 14:50
Riet van Oosten
Hello, Found by Laurens van der Linde, Oct. 2025
Nectria with pale brown spores
Björn Wergen,
07-03-2012 11:09
Hi all,a few days ago I have found a small, single growing Nectria on old Quercus wood. It has 0,2-0,3 mm broad, bright red perithecia with protuding same-coloured ostiolus.
The main interesting thing is that it has pale brown mature spores with verrucose ornamentation and a single septa. I had 3 other Nectria that day with similar but hyaline spores, differing in spore size and ornamentation.
I did not see any conidia (or do the black stipes having a relation to the Nectria?)
Spores are 10,5-12,5x4-6µm, Asci 90-110x5-6µm.
regards,
björn
Björn Wergen,
07-03-2012 11:58
Re : Nectria with pale brown spores
Hi Yan, do you mean the Cosmospora aff. magnusiana thread from Zotto? These findings were on Diatrype species, my was on wood associated by Protounguicularia barbata. Cosmospora seems to be unclear these days :/
Christian Lechat,
07-03-2012 16:19
Re : Nectria with pale brown spores
Dear Björn,
at present, several research teams are working with the "Cosmospora" in the world. It seems that there is numerous species in this group but we do not yet know well how to separate them.?
Yan is right, it is impossible to know what is your specimen without culture and molecular data. Jacques Fournier and I are working with "Cosmospora", as soon as we will have some results we will notify you.
Furthermore, I would like to study your collection, if you agree, you can send it to me
Regards,
Christian
Ascofrance
64, route de Chizé
79360 Villiers en Bois
France
at present, several research teams are working with the "Cosmospora" in the world. It seems that there is numerous species in this group but we do not yet know well how to separate them.?
Yan is right, it is impossible to know what is your specimen without culture and molecular data. Jacques Fournier and I are working with "Cosmospora", as soon as we will have some results we will notify you.
Furthermore, I would like to study your collection, if you agree, you can send it to me
Regards,
Christian
Ascofrance
64, route de Chizé
79360 Villiers en Bois
France
Björn Wergen,
07-03-2012 22:27
Re : Nectria with pale brown spores
Hi Yan and Christian,
thanks.
@Christian: Of course I will send you. I have some other Nectria here, I will send them too, perhaps you can do something with them :)
regards,
björn
thanks.
@Christian: Of course I will send you. I have some other Nectria here, I will send them too, perhaps you can do something with them :)
regards,
björn
Christian Lechat,
07-03-2012 22:46
Re : Nectria with pale brown spores
Ok Björn,
I'm waiting for your sending
Christian
I'm waiting for your sending
Christian