Diaporthales on Populus - Forum ASCOFrance

18-12-2025 21:17

Two collections of yellowish discs on bare ground

Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

indet. Rutstroemiaceae sp. on unk. fallen leaves

Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Peziza vers varia ?

Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Polydesmia fructicola ?

Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

18-12-2025 18:07

Phaeoisaria like?

Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Asexualfungi I : a book announcement

Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

Mollisia sp.

François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Melanospora cf. lagenaria on decaying polypore

Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Unknown anamorph

Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Pyrenopeziza deunicinata c.f. ??

Hardware Tony

Small clavate hairs, negative croziers and IKI bb

« < 1 2 3 4 5 > »

Diaporthales on Populus

Juuso Äikäs, 26-03-2025 18:29

I recently found some ascos that I think belong to Diaporthales, growing on a fallen Populus tremula tree (although am not 100% sure about the substrate's species). Presumably the stromata have developed under bark. There are clusters of a few short necks here and there

Asci 8-spored, IKI-. Spores 2-celled, constricted at the septum, having many guttules. What caught my attention was the rather small and inconspicuous, round appendage at both ends of the spores.

Spore measurements: 13.2 - 14.4 × 4.2 - 4.6 µm, Q = 3.0 - 3.5; avg = 13.9 × 4.3 µm, Qav = 3.2; n = 5.

Some Melanconis species at least have similar microscopy, but I haven't found a proper species candidate from there.

Accès membres

Forum AscoFrance