31-03-2026 21:18
Miguel Ángel Ribes
Good evening. oes anyone have the original descrip
31-03-2026 20:57
Stefan BlaserHello everybody, I hope somebody can help me with
26-03-2026 15:31
Åke Widgren
Hello,I found this one in October last year, on r
31-03-2026 16:20
Mlcoch Patrik
Hello, Please about help with determination. On
31-03-2026 08:19
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous m'aider à
30-03-2026 12:03
William Slosse
Hello all,On 27/03/26, in Kraaiveld in Wingene (Be
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
30-03-2026 09:53
Yanick BOULANGERBonjourVoici des petites fructifications poilues s
Microthyrium on Rubus?
Björn Wergen,
08-04-2012 20:58
Hi all,I have found a small, Microthyrium-like pyrenomycete with unitunicate (?) asci and spores about 10-14x3-4,5µm, first with a single medium septa, mature spores with 3 septa, smooth, hyaline, without appendices.
Substrate: Rubus fruticosus.
I have checked Ellis&Ellis, there are some Microthyrium species described but I think this here is something else. Who can help?
thanks and regards,
björn
edit: Can it be Microthyrium versicolor?
Alain GARDIENNET,
08-04-2012 22:37
Re : Microthyrium on Rubus?
Hi Björn,
Your fungus doesn't look like Microthyrium which are superficial species.
No idea at once.
Alain
Your fungus doesn't look like Microthyrium which are superficial species.
No idea at once.
Alain
Chris Yeates,
09-04-2012 03:42
Re : Microthyrium on Rubus?
hello Björn
I agree with Alain - this certainly isn't Microthyrium versicolor which in my experience has quite a thick upper surface and distinctive margin - see the images (not brilliant, but you will get the idea); your spores, while mostly immature, as you say are developing 3 septa - again not suggesting the Microthyriaceae . . .
Chris
I agree with Alain - this certainly isn't Microthyrium versicolor which in my experience has quite a thick upper surface and distinctive margin - see the images (not brilliant, but you will get the idea); your spores, while mostly immature, as you say are developing 3 septa - again not suggesting the Microthyriaceae . . .
Chris
Björn Wergen,
09-04-2012 07:21
Re : Microthyrium on Rubus?
Thank you both, it would be the first time for me with a Microthyrium...so I need some experience, which I get even if THIS is not a Microthyrium ;)
I am interested in what this is...
I am interested in what this is...
Chris Yeates,
09-04-2012 14:13
Re : Microthyrium on Rubus?
If you want to see Microthyrium, Björn, have a look at fallen Ilex aquifolium and Buxus leaves - you should find it pretty quickly! You will find that the thyriothecia will easily lift off the surface of the leaf with a needle or sharp scalpel blade.
best wishes
Chris
best wishes
Chris