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21-11-2025 15:22

Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

21-11-2025 10:50

Mirek Gryc

Hello Please help me identify this little asco.It

21-11-2025 11:52

Jean-Luc Ranger

Bonjour à tous, on voit toujours 2 espèces areni

21-11-2025 10:56

Christopher Engelhardt Christopher Engelhardt

Very small (~0,5 mm) white ascos, found yesterday

29-06-2016 18:06

Elisabeth Stöckli

Bonjour,Trouvé sur branches mortes cortiquées de

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

17-11-2025 21:46

Philippe PELLICIER

Bonjour,Récolté sur bois pourrissant de feuillu

20-11-2025 14:14

Mick Peerdeman

Found on the leaves of 'Juglans regia' in the Neth

20-11-2025 13:07

Mick Peerdeman

In January i found these black markings on the dea

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Quite a puzzle
hannie wijers, 27-04-2013 15:57
Last week I found on  twig of Rubus these black frb with a whitish spot in it. Curous as I am, I wanted to kno what this could be, I put it under de bino and I thought; "oh it looks like a puzzle". I think there are a couple of spores? I only know the size of the moon-formed (conidien)spores? Thes are 20-22 x 4 µm.

Maybe someone  can shine a light on it for me?


Thanks  


Hannie
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Mateusz Wilk, 27-04-2013 18:32
Re : Quite a puzzle
Dear Hannie,

I can't say anything constructive about these two dark-spored fungi, unfortunately.
The last one, moon-shaped, looks like conidium of Fusarium, the green colour is strange, however - is it some abberration? If it's conidium, then this white cluster on photo 8 would be the sporodochium of Fusarium (it seems to produce these moon-shaped conidia?).
Interesting thing is, that there are several "white-black" associations. Then it is possible, that the fungus with small, two-celled dark spored (and perithecia) is a teleomorph (maybe Gibberella? I don't know if they have dark spores?), and the white is an anamorph (i.e. Fusarium). Yet this is just an idea.
The third one - no idea at all..

Best wishes,
Mateusz
Chris Yeates, 27-04-2013 18:53
Chris Yeates
Re : Quite a puzzle
Hello Hannie
images 6,7 and 8 show the teliospores of the rust fungus Phragmidium bulbosum - presumably strays from living or dead leaves
images 4 and 5 seem to show the conidia of a Diplodia; given the substrate D. rubi would be the most likely candidate - what were the dimensions of the conidia?
image 7 (upper right middle) shows a conidium of Seimatosporium lichenicola, the imperfect stage of Discostroma corticola, and a very common fungus found on dead Rubus fruticosus stems

amitiés
Chris
hannie wijers, 27-04-2013 19:00
Re : Quite a puzzle
Mateusz and Chris, my compliments. I hadt expect that someone should have known what all this could be. But I'm happy with it, i can study to these kind of fungi.
Both thanks a lot.


Best wishes
Hannie
hannie wijers, 27-04-2013 19:28
Re : Quite a puzzle
Chris I don't kow what the dimensions of the conidia are. Mostly I have to write it all down and I forgot it this time, sorry.


Best wishes
Hannie