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Louis DENYBonjour forum, Trouvé sur bois de feuillu très d
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Robin Isaksson
Hi!Found i Japan on bark of Abies sp. Spores 35-4
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Lothar Krieglsteiner
some days ago, on the lower surface of leaf of Que
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!















