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24-12-2025 18:12

Orbilia
Ethan Crenson

Hello all, A friend found this Orbilia growing on

28-12-2025 12:08

Karstenia? anamoph?
Margot en Geert Vullings

This possible Karstenia was found on the bark of d

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'
Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

26-12-2025 21:19

Pithyella chalaudii Priou.; als Bryoprasit auf einem weiteren Wirt gefunden.
Arnold Büschlen

Pithyella chalaudii Priou. Ist als Bryoparasit in

21-12-2025 09:32

Spherical Pyrenomycete
Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

18-12-2025 21:17

Two collections of yellowish discs on bare ground
Pol Debaenst

The identification took me to Byssonectria deformi

21-12-2025 12:34

Nectria ??
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

24-12-2025 17:08

Propolis sp. on Picea abies
Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

23-12-2025 11:27

blanc poilu
Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

20-12-2025 10:49

Small resin asco?
Mirek Gryc

Hi. „I doubt it is possible to identify this ti

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Synnemata on Russula
Alain GARDIENNET, 04-10-2017 20:05
Alain GARDIENNET

Hi forum,


I can't identify this hyphomycete on old black Russula.


White synnemata less than 1mm, with subglobose conidial mass,  producing ciliate hyalin aseptate conidia, 6-7 x 2 µm, with 4-11 µm long appendages .


Alain

  • message #50618
  • message #50618
Jason Karakehian, 04-10-2017 20:43
Jason Karakehian
Re : Synnemata on Russula
Those are some really good photos. I wonder though if they aren't pycnidia? It looks like the masses of conidia are emerging from a peridium of hyaline tissue?
Jacques Fournier, 05-10-2017 10:07
Jacques Fournier
Re : Synnemata on Russula
salut Alain,
je pense que Jason a raison. Un synnema est porté par un stipe, souvent long, constitué d'hyphes en palissade qui se différencient en cellules conidiogènes au sommet.
Il faudrait voir aussi à quoi ressemblent les cellules conidiogènes, qui se trouvent peut-être à la base de la pycnide.
Une coupe longitudinale de la pycnide s'impose! ça t'apprendra à lorgner les Russules!
Amuse toi bien,
Jacques
Jason Karakehian, 05-10-2017 14:39
Jason Karakehian
Re : Synnemata on Russula
Yes. Determining what type of conidiomata you have will direct you to literature specific to that type. For instance, when we have pycnidia or acervuli we can turn to Sutton's The Coelomycetes. Fungi imperfecti with pycnidia, acervuli and stromata. 1980. Best - J
Alain GARDIENNET, 06-10-2017 07:32
Alain GARDIENNET
Re : Synnemata on Russula

Bonjour,


I only find time to answer.


I will do again new microscopy, probably on sunday. I can show you now another picture corresponding probably to the top of synnemata-like.


Alain


 

  • message #50643
Spooren Marco, 08-10-2017 11:35
Spooren Marco
Re : Synnemata on Russula
Hello Alain,

I do not have a speciesname for you,but the synnemateous fungi, the genera, are nice3ly discribed in "Genera of hyphomycetes ", from Seifert and Gams  and so.

Best,

Marco
Hermann Voglmayr, 09-10-2017 18:07
Hermann Voglmayr
Re : Synnemata on Russula
Hi Alain,
look at Eleutheromyces subulatus. Grows, amongst others, on Russula and blackens the basidiomata.
Cheers,
Hermann
Alain GARDIENNET, 10-10-2017 21:52
Alain GARDIENNET
Re : Synnemata on Russula

and the winner is... Hermann ! Congratulations.


Here are cells of conidiomata wall.


Thank you to all, especially to Hermann, of course.


Alain

  • message #50689