22-04-2026 20:17
Marian Jagers
Is anyone familiar with the Hyphomycetes genus Pse
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
cf. Chalara fraxinea
Pavol Palo,
23-02-2021 20:18
may I ask you for help ? I would need some idea or opinion.
Found on dead wood Fraxinus excelsior. I don't know how the amorphous stage of Hymenoscyphus fraxineus (Chalara fraxinea) actually looks macroscopic. The fruiting body is fragile, and contains structures that are pictured. Found both in January but also in September
Regards
Pavol
Viktorie Halasu,
23-02-2021 20:30
Re : cf. Chalara fraxinea
Hi Palo,
have you tried (macro) reaction of the stroma(?) in KOH? To me it looks a bit like a germinating Hypoxylon.
Tori
have you tried (macro) reaction of the stroma(?) in KOH? To me it looks a bit like a germinating Hypoxylon.
Tori
Pavol Palo,
24-02-2021 18:59
Re : cf. Chalara fraxinea
Hi Tori,
Slightly yellow color reaction of "stroma" with 10% KOH. But I've also never not seen spore chaining with Hypoxylon sp. It looks more like chlamydiospores that produce conidia
regards
Pavol
Slightly yellow color reaction of "stroma" with 10% KOH. But I've also never not seen spore chaining with Hypoxylon sp. It looks more like chlamydiospores that produce conidia
regards
Pavol
Thorben Hülsewig,
24-02-2021 22:54
Re : cf. Chalara fraxinea
Hi Palo,
compare with Xylohypha nigrescens.
best regards,
Thorben
compare with Xylohypha nigrescens.
best regards,
Thorben
Pavol Palo,
24-02-2021 23:55
Re : cf. Chalara fraxinea
Hi Thorben,
Thank you, it looks like that's it
Sincerely
Pavol
Thank you, it looks like that's it
Sincerely
Pavol