Diatrypaceae - Forum ASCOFrance

25-01-2026 23:23

Delitschia/Lojkania? on wood

Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Amniculicola

Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Pachyella 1898

Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Asco in Pinus halepensis

Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

At first glance, a Nitschkia, but...

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

pyrenomycete on dead parts of foliose liverwort from Norway

Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Dark disc on Populus

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Lichénicole sur Lobaria

Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Lichénicole sur Peltigera

Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Lichenicole hypocreale

Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

« < 1 2 3 4 5 > »

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

Alain GARDIENNET, 11-11-2019 15:33

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

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

Accès membres

Forum AscoFrance