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08-05-2026 11:55

Gernot Friebes

Hi,found on a decorticated Picea abies branch stil

11-05-2016 20:37

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi,this very little ascomycete grew on soil in a m

09-05-2026 07:37

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,please, could anyone share this paper?Ferná

07-05-2026 11:02

Ã…ke Widgren Ã…ke Widgren

Hello,About two months ago I found a strange Delit

05-05-2026 22:40

Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

06-05-2026 11:25

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

06-05-2026 17:23

Thomas Læssøe

https://svampe.databasen.org/observations/10594257

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

04-05-2026 18:13

Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

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Nectria with pale brown spores
Björn Wergen, 07-03-2012 11:09
Björn WergenHi 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
  • message #17657
  • message #17657
  • message #17657
Björn Wergen, 07-03-2012 11:58
Björn Wergen
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
Christian Lechat
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

Björn Wergen, 07-03-2012 22:27
Björn Wergen
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
Christian Lechat, 07-03-2012 22:46
Christian Lechat
Re : Nectria with pale brown spores
Ok Björn,
I'm waiting for your sending

Christian