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31-01-2026 09:17

Small hairy discs on Castanea
Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

31-01-2026 10:22

Lichenicole hypocreale
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Bonjour, Cette hypocreale parasite en nombre les

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Francois Guay Francois Guay

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éric ROMERO éric ROMERO

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Lichenicolous coelomycete
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Hi,I need your help with some black dots on a lich

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Una Peziza a latice giallo-verdastro con croziers
Zugna Marino Zugna Marino

Buon giorno a tutti, ad un primo momento, non ess

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Séminaire Ascos en Belgique
Jean-Paul Priou Jean-Paul Priou

Bonjour à tous, Marcel LECOMTE président de L'A

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Peziza avec latex
Pablo Chacón Pablo Chacón

Bonne nuit, Voir si vous m'avez élaguée appor

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Ascomas cupoliformes abiertos lateralmente, himeni

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Bloody Hypoxylon!?
Dartanha Soares, 11-04-2016 23:18
Dartanha SoaresHi to all,
Found this one on decorticated wood (unknown), but I did not have much time to work on it.
Ascospores are 12.5-14.5x5.6-6.5 micra, with sigmoid germ slit (full spore length), perispore dehiscent.
What called my attention was the "red-blood" pigment on KOH 10%.
Any hint will be welcome.
  • message #42102
Jacques Fournier, 12-04-2016 08:39
Jacques Fournier
Re : Bloody Hypoxylon!?
Hi Dartanha,
this is strongly suggesting H. lenormandii but the red pigments in KOH are indeed deviaiting from those encountered in typical H. lenormandii. It is worth a more detailed study.

Cheers,

Jacques
Dartanha Soares, 12-04-2016 13:44
Dartanha Soares
Re : Bloody Hypoxylon!?
Hi Jacques,
Thank you very much.
I looked at Kuhnert et al. paper (Fungal Diversity (2015) 71:165–184) and it fits well. They mentioned that this fungus "have Blood colour (3) and Dark Vinaceous (84) pigments in KOH", and is already reported from Brazil (a single specimen collected by Rick in 1906!!).
But as you said, it deserves further studies, since according to them "H. lenormandii" seems to be a species-complex.
Once again, thank you very much!!