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18-11-2014 19:13

Joop van der Lee Joop van der Lee

Found on rabbit dung.Species was only visible beca

19-11-2014 07:32

Blasco Rafael Blasco Rafael

Hola buenos dias.Lesparece que sea Peziza moseri??

19-11-2014 07:56

Blasco Rafael Blasco Rafael

Hola, creo despues de ver la micro, que como decia

15-11-2014 07:32

Blasco Rafael Blasco Rafael

Hola, alguien dispone de documentacion sobre Melas

10-11-2012 17:27

Gilbert MOYNE

Voici un petit"Pyrenomycete" qui me pose ben des p

18-11-2014 17:53

Yannick Mourgues Yannick Mourgues

Bonsoir.Sauriez-vous si par hasard les anciens num

17-11-2014 21:49

Yannick Mourgues Yannick Mourgues

Bonjour à tous. Je suis à la recherche de cet a

16-11-2014 17:16

Uwe Lindemann Uwe Lindemann

Hi Forum,I'm searching for the following paper:Dis

15-11-2014 19:01

Edit Szilvásy Edit Szilvásy

Dear Forum,Today I found growing on soil in assoti

12-11-2014 09:41

Garcia Susana

Hi all, I have Collected a Diatrypaceae on hardwo

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Sporormiella grandispora
Joop van der Lee, 18-11-2014 19:13
Joop van der LeeFound on rabbit dung.
Species was only visible because the asci were errupted from the side of the fruitbody breaking through the dung layer.
Asci: 300-400x25-27.5 um; 8-spored; bi-seriate; short stalk.
Spores: 4-celled; 48-52x11.5-12.5 um; parallel germ slit (not in one line); small hyaline sheath surrounding the spores; second cell has a different form (a broad trapezium) while the third cell is cilindrical; both end cells conical.
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Peter Püwert, 18-11-2014 20:36
Peter Püwert
Re : Unknown Sporormiella
Hi Joop,
in my opinion is this Sporormiella grandispora.
Greetings Peter.
Michel Delpont, 18-11-2014 21:09
Michel Delpont
Re : Unknown Sporormiella
Good evening Peter and Joop.

I also think it is S.grandispora although the measures given by Joop asci are larger than in the description.


Michel.

Peter Püwert, 18-11-2014 21:35
Peter Püwert
Re : Unknown Sporormiella
Good evening all,
the argument of measure  I see in the phenomenon,  that some bitunicate asci become a larger shape under determined circumstances. I don't know the name of the phenomenon.
Greetings Peter.
Joop van der Lee, 19-11-2014 08:35
Joop van der Lee
Re : Unknown Sporormiella

Thank you Peter and Michel.
I do agree with you both about the species now but the bigger size of the asci cannot be explaned.
Nevertheless the asci already left the fruitbody (not through the ostiole) when I discovered the species and I carefully placed it under a cover glass in water for examination without any pressure.



Are you sure that these asci are bitunicate Peter because those double wall asci only occur in pseudothecium and species with a perithecium do normally have unitunicate asci. But it would explane the enlargement of asci because bitunicate asci take on water when the outer shell splits open when spores are ripe and enlarge


By the way even within the tangle of asci in the photo the minimum length of the asci was 290 um.


 

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Chris Yeates, 19-11-2014 11:15
Chris Yeates
Re : Unknown Sporormiella
Yes the asci are bitunicate in Sporormiella whose ascomata are treated as pseudothecia. Look at the right hand (downward pointing) ascus in your last image Joop and you can clearly see the two layers to the ascus.
best wishes
Chris
Michel Delpont, 19-11-2014 13:59
Michel Delpont
Re : Unknown Sporormiella
Of course, the asci are bitunicate; which explains the dimensions, the dehiscence was already reached on most asci. Belonging to the genus Sporormiella Loculoascomycetes.

Michel.
Joop van der Lee, 19-11-2014 15:23
Joop van der Lee
Re : Unknown Sporormiella
Thanks Chris and Michel.