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07-11-2013 00:01

DirkW DirkW

salut a tous,has anybody knowledge about collectio

19-02-2013 00:10

Francisco Calaça Francisco Calaça

Hi to all!I'll like to know if someone have the fa

06-11-2013 19:28

Chris Yeates Chris Yeates

Bonsoir tousthis pale lilac-coloured Orbilia was c

05-11-2013 18:20

Nicolas VAN VOOREN Nicolas VAN VOOREN

Here is a Calycina (I mean) species that I cannot

04-11-2013 19:56

Enrique Rubio Enrique Rubio

Hi to allThis nice Otidea makes auricularioid apot

04-11-2013 22:33

Gilbert MOYNE

Bonsoir,Voici un petit ascomycète qui me laisse b

02-11-2013 17:17

Beñat Jeannerot Beñat Jeannerot

Adio à tous,Il me faudrait les articles suivants

02-11-2013 16:25

Peter Thompson

Hello Everyone,I have received the data and images

03-11-2013 05:35

Beñat Jeannerot Beñat Jeannerot

Adio à tous,Désolé d'encombrer le forum avec ç

01-11-2013 22:38

Javier Ormad Javier Ormad

Hola a todos!Os presento un especimen en hojas de

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Microthyrium on Rubus?
Björn Wergen, 08-04-2012 20:58
Björn WergenHi 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?
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Alain GARDIENNET, 08-04-2012 22:37
Alain GARDIENNET
Re : Microthyrium on Rubus?
Hi Björn,
Your fungus doesn't look like Microthyrium which are superficial species.
No idea at once.
Alain
Chris Yeates, 09-04-2012 03:42
Chris Yeates
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
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Björn Wergen, 09-04-2012 07:21
Björn Wergen
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...
Chris Yeates, 09-04-2012 14:13
Chris Yeates
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