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14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

15-11-2025 09:21

Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

14-11-2025 18:31

Lothar Krieglsteiner Lothar Krieglsteiner

Hello,can somebody provide me with a file of:Rothe

12-11-2025 21:47

ruiz Jose

Hola a todos, me envían esta colección en resto

12-11-2025 09:25

Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

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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