26-11-2025 18:13
The entire run of Mycotaxon is now available throu
25-11-2025 14:24
Thomas Læssøehttps://svampe.databasen.org/observations/10490522
25-11-2025 11:03
Mick PeerdemanHi all,One of my earliest microscopy attempts, so
24-11-2025 15:23
Arnold BüschlenHallo, auf einer offenen Kiesfläche am Rande ein
23-11-2025 11:16
Bohan JiaHi, I found small discs growing on dead stem of
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday

Hi All,
I have found a mollisioid fungus on very hard, partly submerged wood, probably Alnus. The yellowish apothecia are about 1mm, some completely submerged in fresh water.
Ascospores: Ellipsoid, 8-11.5x4.3-6.
Asci: 78-120x6-9. Pore weakly blue in Melzer's.
Excipulum agglutinated with orange-brown matter at the margin.
Paraphyses with Vbs. Enlarged to 4-5.
Best wishes,
Charles.
Hi Zotto,
Many thanks for this. I had thought the spores a bit wide (lower Q) for H. imberbis but I think that could be down to natural variability. Certainly, the apothecia seem to show quite a range of colour.
Best wishes,
Charles.
Do your macro photos have a yellow colour cast?
I agree that this is Hymenoscyphus imberbis, as Zotto says, but I have never seen the fruit bodies looking as yellow as this.
With Best Wishes,
Peter.
Hi Zotto and Peter,
Yes, the apothecia are definitely yellowish. I could not find croziers after a purposeful search.
Charles.






