12-11-2025 09:25
Viktorie Halasu
Hello, I need help with a pale terrestric Pseudom
11-11-2025 20:16
Bohan JiaHi, lastly I have found these tiny yellow decayin
09-11-2025 13:20
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
Ceratostomella spec.
Riet van Oosten,
26-06-2019 20:15

Hello,
Found by Ronald Morsink on decayed wood (Fagus), 16-06-2019, The Netherlands.
Asci: 8-spored, 37.5 x 5.4 µm
Spore size: 4.3-4.6 x 1.3-1.7 µm
Could this be a Ceratostomella species or am I completely wrong?
Greetings,
Riet
Alain GARDIENNET,
26-06-2019 23:18
Re : Ceratostomella spec. .... or something completely different?
Yes, perhaps Ceratostomella rostrata.
Riet van Oosten,
27-06-2019 08:25
Re : Ceratostomella spec. .... or something completely different?
Thank you very much Alain!
Simon Kennedy,
28-06-2019 12:48
Re : Ceratostomella spec.
At the risk of not being very helpful, I would think that is not a Ceratostomella, (Lentomitella sensu Reblova). I thought that Ceratostomella (Endoxyla sensu Munk) has septate ellipsoid, hyaline spores.
Of course, I am not sure, but thought I would comment, from my position of ignorance, if only to improve on my understanding of this entity with far too many name changes.
Simon
Alain GARDIENNET,
28-06-2019 13:12
Re : Ceratostomella spec.
Reference, to compare
Riet van Oosten,
28-06-2019 13:17
Re : Ceratostomella spec.
Hello Simon,
Saw this topic the day before yesterday:
Quote: " ... With Munk Endoxyla rostrata fits quite well but according to Réblová this species is a Ceratostomella, a genus with brown spores. ...."
Réblová 2006
On page 75
KEY TO THE GENERA CERATOSPHAERIA, CERATOSTOMELLA,
ENDOXYLA, LENTOMITELLA AND XYLOMELASMA
ENDOXYLA, LENTOMITELLA AND XYLOMELASMA
Kind regards, Riet
Riet van Oosten,
28-06-2019 13:20
Re : Ceratostomella spec.
About the same time Alain :-)
Simon Kennedy,
28-06-2019 15:02
Re : Ceratostomella spec.
Many thanks, Riet,
I have been struggling with these pyrenocarps, for some time and I still manage to lose track of things, despite frequently finding what I take to be L. cirrhosa.
Simon













Reblova-2006-M98-Ceratostomella-molecular-systematics-0001.pdf