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31-07-2025 16:32

Carbophilous discomycete - Anthracobia pseudorehmii?
Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

06-08-2025 08:56

Scutellinia cf. subhirtella
Antonio Ezquerro Antoñana Antonio Ezquerro Antoñana

Hola a todos, Me gustaría saber qué opinan sobre

12-02-2012 11:31

Spooner 1987 Australasia
Hans-Otto Baral Hans-Otto Baral

Hi allI am quite sure that nobody has a pdf of thi

02-08-2025 12:35

Hymenoscyphus albidus ?
éric ROMERO éric ROMERO

Bonjour tous, J'ai trouvé sur pétiole de Fraxin

02-08-2025 17:21

Pleomassaria protrusa description
Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche la description et la planche

30-07-2025 20:52

apo on Pteridium aquilinum
Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 10:12

Asco1 sur crotte de mouton
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-07-2025 18:06

Orbilia dryadum?
Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Ayuda con esta
Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Capronia
Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

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Black on Picea abies
Marja Pennanen, 06-08-2011 12:09
Hello,

these black spots are up to something like 0,5x0,1 mm.
The asci are 50-65x3-4.
Spores are 12-16x2 and seems to develop one septum.
Maybe this represents a Mytilinidiaceae species. Could this be for instance Actidium hysterioides or A. nitidum?

Marja
  • message #16066
  • message #16066
  • message #16066
Alain GARDIENNET, 06-08-2011 17:37
Alain GARDIENNET
Re : Black on Picea abies
Yes very probably A. nitidum.
Alain
Marja Pennanen, 07-08-2011 12:19
Re : Black on Picea abies
Thank you!

Once again a representative of a new genus for me.
The species may even be new to Finland.

Marja
Alain GARDIENNET, 15-11-2022 18:25
Alain GARDIENNET
Re : Black on Picea abies
Hi Marja,
10 years later, I read again your post, and my answer. No I can say that is not Actidium nitidum, but un ined. species. Did you keep material ? 
I find a similar species several time, but on  Abies. Did you sure of Picea ?Best wishes,
Alain
Marja Pennanen, 19-11-2022 12:46
Re : Black on Picea abies
Dear Alain,

I have the specimen and I just checked it. It seems to be a small branch of Picea abies, where those black ones grow.

Greetings: Marja