23-10-2025 20:59
Patrice TANCHAUDBonsoir, est-ce que quelqu'un posséderait un com
24-10-2025 14:50
Riet van Oosten
Hello, Found by Laurens van der Linde, Oct. 2025
24-10-2025 03:11
Francois Guay
I found this fungus growing on decaying conifer wo
20-10-2025 09:36
Nicolas VAN VOOREN
Hello.I'm searching for the following article:Bene
21-10-2025 23:13
F. JAVIER BALDA JAUREGUIHello to everyone.Did you think it could, be a pyx
22-10-2025 14:45
Lukas VerboomDear all,I collected this in the Netherlands, on t
22-10-2025 11:13
Jean-Luc RangerBonjour, Petites boules plus ou moins sphériqu
21-10-2025 21:25
Philippe PELLICIERBonjour,J'ai récolté en septembre sur une litiè
Unknown asco found in a root hole
Francois Guay,
03-10-2025 22:03

Hi everyone, I found this weird asco growing on wood in a root hole, and I have no clue what it is.
Spores: 20–31.7 × 4.7–6.4 µm
Asci: IKI+ with croziers
Here’s the iNat post with photos and microscopy: https://www.inaturalist.ca/observations/318343963
Any idea what it could be?
Thank you!
Any idea what it could be?
Thank you!
Hans-Otto Baral,
04-10-2025 08:45
Re : Unknown asco found in a root hole
Clearly overmature, the spores are probably non-septate when mature but get 3-septate when producing conidia. The apical ring is not very typical but I suggest searching in Rutstroemiaceae although the apos are very small and unusual and the ectal excipulm very short-celled.
Francois Guay,
05-10-2025 21:23
Re : Unknown asco found in a root hole
Thanks, Zotto. I appreciate the suggestion; it's the first time I've observed ascospores producing conidia in this manner. I will certainly search in Rutstroemiaceae further.