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25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by J

25-04-2025 09:33

Josep Torres Josep Torres

Ascomata shaped like deformed black grains, measur

24-04-2025 21:53

Lothar Krieglsteiner Lothar Krieglsteiner

... 15.7.24 in the Alps. There were many asci with

23-04-2025 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon Looking for Octospores / Lamprospo

24-04-2025 21:35

Thorben Hülsewig

Hi there,last week i could found this asco on an S

24-04-2025 15:03

Henri Koskinen

Hello, I collected this Lasiobolus 22.04. near Hel

23-04-2025 19:58

Francois Guay Francois Guay

I found this interesting Orbilia sp. one year ago

22-04-2025 10:37

François Bartholomeeusen

Also found on April 18, 2025 on an old seed-pod of

22-04-2025 09:35

François Bartholomeeusen

Dear forum members, Can someone help me!On April

23-04-2025 12:13

Johannes Merz Johannes Merz

Hi,maybe someone has an idea regarding this asco/l

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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