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31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

25-11-2016 13:54

Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

28-10-2025 22:22

Bernard Declercq Bernard Declercq

Hello.I'm searching for the following paper:Punith

27-10-2025 19:51

Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

28-10-2025 11:29

Tanja Böhning Tanja Böhning

Hello, I found this very small (ca 0,5mm) yellow

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Eutypa on Fagus
Stefan Blaser, 15-03-2012 08:52
Hello everybody

Related to the thread of Daniel Ghysenlinck I know put data about my unidentified Eutypa collections which were made on Fagus sylvatica.


Description: Fruitbodies very inconspicuous, from some distance only a darkening of the wood. With the naked eye the ostioles could just be seen as tiny black dots on the blackish surface. The Stroma with the scattered perithecia is about 0.5 - 0.6 mm thick. Perithecia are about 0.4 mm broad and 0.3 mm high with a neck length of about 0.25 mm. About 0.15 mm of the neck is within the stroma and only some 0.1 mm protruding as a semiglobous structure (see photos).


Microscopy: Asci are typically long stalked with a spore bearing part of about 25-35 micrometers. Apical apparatus is very faintly and inconspicuously bluish in Iodine. Spores are brownish, allantoid and 6-9 x 1.8-2.2 micrometers with 7 x  2 beeing the average.


Ideas are very welcome. Ask if you need further morphological details.


Thanks very much


Stefan

  • message #17799
  • message #17799
  • message #17799
  • message #17799
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Yannick Mourgues, 15-03-2012 18:44
Yannick Mourgues
Re : Eutypa on Fagus
Hi !

I have not checked microscopic characters, but why not consider Diatrype decorticata ?

Yannick
Stefan Blaser, 15-03-2012 21:32
Re : Eutypa on Fagus
Hi Yannick

This seems to be a good idea to follow. Thanks for the Input!
Stefan
Alain GARDIENNET, 15-03-2012 22:27
Alain GARDIENNET
Re : Eutypa on Fagus
I don't think that it is one Diatrype, like decorticata. It looks like Eutypa lata, isn't it ?
Alain
Yannick Mourgues, 15-03-2012 23:06
Yannick Mourgues
Re : Eutypa on Fagus
Oui, je me range à l'avis d'Alain.
I think Alain is right.

Yannick
Stefan Blaser, 16-03-2012 07:10
Re : Eutypa on Fagus
Thanks Alain et Yannick

This is definitly a name I came by during my researches. Can't remember why I discarded it again. Probably because there is little illustration and documentation on the species. But I will definitly focus on this now and compare characters with literature about E. lata.

Thanks again
Stefan