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14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

14-04-2026 20:31

Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

12-04-2026 12:22

William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

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blue stain of substrate caused of Hysterium
Lothar Krieglsteiner, 18-11-2022 10:57
Lothar Krieglsteinerthis collection I could determine as Hysterium pulicare was found on the inside of loosening bark of a lying Betula log, and already in the field it was obviously growing only on a blue-green colored spot, like in Lophiostoma viridarium for instance.
I never before heard of Hysterium as causing such a phenomenon. Does somebody of you have?Yours, Lothar
  • message #74382
Alain GARDIENNET, 18-11-2022 13:01
Alain GARDIENNET
Re : blue stain of substrate caused of Hysterium
Not rare, I've already seen that with Hysterium angustatum, and more with Hysterobrevium smilacis.
Lothar Krieglsteiner, 18-11-2022 17:47
Lothar Krieglsteiner
Re : blue stain of substrate caused of Hysterium
thank you very much! Then it is not unusual with (some) Hysteriaceae. 
Yours, Lothar