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29-06-2016 15:18

Scopinella
Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Scopinella?
Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

Gnomoniaceae
David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Literature search
Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

Nectriaceae on Fagus
David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Arachnopeziza delicatula
Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Helotiales on Pinus needles
Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Mollisia sp?
Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Unknown helotiales on Abies bark
Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

minute hairy discomycete from Portugal - Fuscolachnum?
Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

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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