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03-07-2020 22:51

Viktorie Halasu Viktorie Halasu

Hello,I'd like to ask for help with a lichen. In w

03-07-2020 21:06

Castillo Joseba Castillo Joseba

me mandan el material seco,, recolectado en plante

03-07-2020 20:54

Castillo Joseba Castillo Joseba

me mandan el material seco recolectado en rama de

03-07-2020 20:54

Castillo Joseba Castillo Joseba

me mandan el material seco recolectado en rama de

03-07-2020 17:47

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

02-07-2020 22:07

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectada en Lantar

02-07-2020 21:45

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en  tallo

27-06-2020 13:21

Hardware Tony Hardware Tony

I wondered if anyone could help me with this ascom

02-07-2020 07:56

Garcia Susana

Hola, Agradecería vuestra ayuda para la identifi

02-07-2020 13:33

Garcia Susana

Hola, He recogido estos apotecios que crecían en

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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