Dag Cois, Hi François,

These long-stalked asci and there apex are typical for Diatrypaceae. There, with those very long neck, I would directly have chosen for Peroneutypa. But Peroneutypa species have small, aseptate spores. At first sight no other genus seems to fit here.

All the best,

Bernard

Bonjour,

Espèce à comparer à Diaporthe eres. Ou en tout cas dans ce genre. Il arrive que les becs soient si longs.

Alain

Hi Bernard, thanks for bringing my item back to life!

Good afternoon Alain,

Thank you for your suggestion. Diaporthe eres is a good candidate. I found a description of D. eres on the internet (Huhndorf, S.A. 1992 and Wehmeyer L.E. 1933).
The dimensions of the spores are correct except mine are wider (possible effect of measurements on herbarium material?).
In attachment some pictures of the last examinations. I have the impression that the spores take on a different shape with each examination.
Because the two parts of the spores are not always the same I thought of Apioporthe but that seems to be a synonym of Diaporthe. Sometimes I think I see short appendages at the poles of the spores.
My choice is D. eres if the substrate is not a problem.

Thank you very much Alain and Bernard,

François Bartholomeeusen

Hi François and Alain,

Spores typical Diaporthe indeed. But the young long-stalked ascus on the left on that misleading photo 6, on which my comments were based, certainly does not belong to Diaporthe.

Bernard