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11-04-2016 23:18

Dartanha Soares Dartanha Soares

Hi to all,Found this one on decorticated wood (unk

12-04-2016 13:39

Thorben Hülsewig

Hi there,i don't know if i'm right here, but i mak

11-04-2016 12:49

Castillo Joseba Castillo Joseba

En ramas de poda, sin determinarAscomas muy pequeÃ

09-04-2016 10:41

ACAR ismail ACAR ismail

Hi all on branch of Quercus Ascospores 6-11 x 3-

11-04-2016 10:23

ACAR ismail ACAR ismail

Hi all,On burned charcoal,Ascospores 12-16 x 5-7,5

10-04-2016 12:13

Viktorie Halasu Viktorie Halasu

Hello,I got this nice asco and I am not sure if my

09-04-2016 18:40

Pavol Palo

Hello friends,I would need some literature or pers

10-04-2016 08:30

ACAR ismail ACAR ismail

Hi all on twig of Salix sp. asci up to 290 um, t

09-04-2016 17:15

Adam Polhorský

Hello,this fungus (0,9-1,2mm) was found abundantly

09-04-2016 21:23

Blasco Rafael Blasco Rafael

Hola,este hongo estaba sobre una rama de Phragmite

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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!!