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05-12-2019 09:06

Valencia Lopez Francisco Javier

Hola amigosEstoy buscando este trabajo de la Errot

05-12-2019 19:35

Ibai Olariaga Ibarguren

Dear colleagues, I was wondering if anyone could

19-11-2019 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... under a twig of deciduous tree (likely Quercus

27-11-2019 16:54

Rasmus Riis-Hansen Rasmus Riis-Hansen

Hi,I hope you can help med with this disc found a

29-06-2011 22:52

Luc Bailly Luc Bailly

Encore trois ascos de la réserve naturelle domani

04-12-2019 13:01

Mirek Gryc

Hello everyoneI inform you in advance that this is

04-12-2019 14:53

Lothar Krieglsteiner Lothar Krieglsteiner

Hello together, does somebody have: DONADINI J.-

03-12-2019 10:36

Thomas Læssøe

Pale, long-stemmed, recalling H. seminis-alni; ap.

24-11-2019 19:03

Mirek Gryc

They grew on plant debris soaked in faeces togethe

29-11-2019 12:11

Castillo Joseba Castillo Joseba

Me mandan esta muestra de Galicia,  recolectada e

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Diatrypaceae
Stefan Blaser, 11-11-2019 15:00
Hello everybody,

I have another collection where I was not able to find a good match so far.
Maybe I can get some ideas here.


Ecology: lying branch of Fagus.


Macro:
Stromata 2-9 mm long, 1.5-2.5 mm broad and about 2 mm high, erupting from decorticated wood, with a dark brown to black surface. Ostiolar necks up to 0.9 mm long and 0.2 mm diameter, cruciform. Perithecia embedded in whitish tissue, about 0.4-0.6 mm in diameter.


Micro:
Asci stalked, Melzer+, with a spore bearing part of 26-33 x 6.5-7 µm. Spores allantoid, smooth, aseptate, brownish, with greenish oildrops, 7.5-9(-10) x 2.0-2.4 µm.


Thanks a lot for any contributions!


Best wishes,


Stefan


 


 

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Alain GARDIENNET, 11-11-2019 15:33
Alain GARDIENNET
Re : Diatrypaceae
Hi Stefan,

Please, compare to Eutypella leprosa.


Alain

Stefan Blaser, 11-11-2019 16:09
Re : Diatrypaceae
Hi Alain,

Thank you for the suggestion!

With my spore measurements (too small) I did not arrive at this species.

Maybe I repeat the measurement trying some other (more mature?) Perithecia.

Are the ostiolar necks that long in E. leprosa? Or just very variable?

Otherwise, the macroscopic description in "Rappaz" would fit quite well.

Stefan
Jacques Fournier, 19-11-2019 18:35
Jacques Fournier
Re : Diatrypaceae
Hi Stefan,

I also came across this fungus, also on rotten wood of Fagus, and I know a collection from Czech Republic.

Its stromata erumpent from rotten decorticated wood and its long ostioles are distinctive.

Likely an Eutypella but as you say not matching well a known species. It might be an undescribed species but it may also have been described in another genus.

If you have the opportunity, it would be interesting to isolate and to sequence it.

Good luck,

Jacques
Stefan Blaser, 20-11-2019 12:48
Re : Diatrypaceae
Hi Jacques,

Thanks a lot for your informations.

I will try to isolate and sequence it.

Stefan