06-05-2026 17:23
Thomas Læssøehttps://svampe.databasen.org/observations/10594257
06-05-2026 11:25
Me mandan el material seco de Galicia (España) re
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
05-05-2026 22:40
Gernot FriebesHi,I believe this is a Plagiostoma growing on a Sa
04-05-2026 18:13
Stephen Martin Mifsud
ID request for what seems to be a true aquatic fun
04-05-2026 16:39
Stephen Martin Mifsud
ID request: This specimen was collected in Malta o
28-07-2011 18:31
Alex Akulov
Dear FriendsToday I made the pdf file of Velenovsk
04-05-2026 09:50
Me mandan el material seco de Galicia,(España) re
02-05-2026 12:42
Alain BRISSARDBonjour à tousJeuidi 30 avril dernier on m'a remi
Hypoxylon rubiginosum?
Riet van Oosten,
06-05-2023 15:45

Hello, found by Ruud van Middelkoop, April 2023, the Netherlands.
Is this Hypoxylon rubiginosum?
KOH extractable pigments orange
Yellow granules beneath the surface
Ostioles umbilicate
Asci J+
Spore sizes Me: 10.6 x 4.4 µm
Riet van Oosten,
06-05-2023 15:54
Martin Bemmann,
06-05-2023 18:37
Re : Hypoxylon rubiginosum?
Hi Riet,
do you think Robinia is possible (hardwood) for this site?
Best
Martin
Riet van Oosten,
06-05-2023 20:28
Re : Hypoxylon rubiginosum?
Hi Martin,
Ruud did not notice any Robinias and he does not know if they were ever there, but Robinia could be, microscopically it looks very similar.
So we can exclude softwood :-)
Thank you very much!















