19-03-2026 19:34
Filip Fuljer
Hello everyone,a few days ago I collected this str
19-03-2026 18:25
William Slosse
Good evening everyone, On 18/03/26 I found a few
17-03-2026 10:09
François Freléchoux
Bonjour, Voici la description rapide d'un petit d
19-03-2026 17:50
Enrique Rubio
Hi to everybodyThese thiny, blackish pseudothecia
18-03-2026 13:09
Khomenko Igor
I recently examined Celtis occidentalis branches
17-03-2026 19:41
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
18-03-2026 17:22
Katarina PastircakovaHi there,I'm looking for the following literature:
19-03-2026 10:56
Thomas Læssøehttps://svampe.databasen.org/observations/10505643
Eutypa spec. (?)
Stefan Blaser,
20-03-2026 12:53
Hello everybody,
In the field, from distance, my first idea was Eutypa spinosa, but on closer inspection...
Any help would be very welcome!
Substrate:
Corticated, deciduous Wood, most likely Alnus (not sure)
Macro:
Stroma decorticating, colonizing areas of several cm2, Ostioles (papillae) emerging 0.2-0.3 mm above the stroma surface, ±semiglobose, delicately sulcate but not corkscrew-like. Perithecia 0.6-0.8 mm below surface, ellipsoid, ovoid compressed globose or globose, 0.3-0.5 x 0.25-0.5 mm in size. Stromatic tissue very hard/carbonaceous (as in E. spinosa) with weak black lines below.
Micro:
Spores brown, aseptate, smooth, cylindric to narrowly elliptic, slightly bent, but often nearly straight, 6.3 – 8.0 x 2.4-2.9 µm. Asci cylindric, with a long stalk, very delicate and hyaline, often disintegrating (overmature?), without visible blueing in either Melzer or IKI (to my judgment).
Many thanks and best wishes,
Stefan
Jacques Fournier,
20-03-2026 15:29
Re : Eutypa spec. (?)
Hi Gernot,
I'm not going to be very helpful because I don't know a Diatrypaceae with such a combination of features.
I agree with you it is likely an Eutypa, likely not a common one. Hope someone on the forum will be more inspired than me!
Cheers,
Jacques
I'm not going to be very helpful because I don't know a Diatrypaceae with such a combination of features.
I agree with you it is likely an Eutypa, likely not a common one. Hope someone on the forum will be more inspired than me!
Cheers,
Jacques