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21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

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Wentiomyces-like on Salix
Gernot Friebes, 21-04-2026 13:36
Hi,

I am out of ideas for this one. I collected Salix branches with dark spots on them, and it turned out that on these dark spots there were tiny ascomata of a Wentiomyces-like fungus. It is characterised by branched, dark setae and 3-septate ascospores measuring 11-16 x 4.3-6.0 µm. Asci are bitunicate, a hamathecium is apparently missing.

I am not sure what the larger black spots are on which the fungus is growing. They are reminiscent of old fungal or lichen remains, but I was not able to verify this so far. Sometimes the ascomata were also accompanied by some anamorph (last two photos).

Best wishes,
Gernot
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