Accès membres

Mot de passe perdu? S'inscrire

04-10-2025 02:13

Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Unknown asco found in a root hole
Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

05-10-2025 16:41

Could this be Bacidina chloroticula in a mat of algae/lichens?
François Bartholomeeusen

Dear forum members, On a mat of dried algae/liche

04-10-2025 02:17

small disco
Masanori Kutsuna

Hello, This is a quite common species on rotten w

03-10-2025 10:25

chaetomium sp sur crotte lapin
Jean-Luc Ranger

Que pensez-vous de ce Chaetomium sp : 10- 10,5 x 6

03-10-2025 09:43

Pyrenomycete on Hedera
Josep Torres Josep Torres

Tiny blackish ascomata shaped like erumpent grains

02-10-2025 09:16

Discomycete on leaves
Josep Torres Josep Torres

Hello.Some tiny apothecia sprouting in a scattered

01-10-2025 20:16

Hymenoscyphus calyculus?
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I would appreciate your opinion on this yell

« < 1 2 3 4 5 > »
Unknown asco found in a root hole
Francois Guay, 03-10-2025 22:03
Francois Guay
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!
Hans-Otto Baral, 04-10-2025 08:45
Hans-Otto Baral
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
Francois Guay
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.