03-07-2025 20:08
Francois Guay
I found this interesting yellowish asco growing on
28-06-2025 16:00
Josep Torres
Hello.A tiny fungus shaped like globose black grai
20-06-2025 08:33
Josep Torres
Hello.Small, blackish, mucronated surface grains s
01-07-2025 23:37
Josep Torres
Hello.A Pleosporal symbiotic organism located and
02-07-2025 17:26
Yanick BOULANGERBonjourRécolté sur une brindille au fond d'un fo
03-07-2025 18:40
Castillo Joseba
me mandas el material seco de Galicia (España) re
02-07-2025 18:45
Elisabeth StöckliBonsoir,Sur feuilles d'Osmunda regalis (Saulaie),
02-07-2025 09:32
Nicolas VAN VOOREN
Hello, bonjour.Here is the paper I'm searching for
30-06-2025 16:56
Lydia KoelmansPlease can anyone tell me the species name of the
30-06-2025 12:09
Edvin Johannesen
This tiny, rather "rough" erumpent asco was found
Pyrenochaeta nobilis var. ilicis
Chris Yeates,
08-02-2022 23:10
Hello all
A recent collection of this fungus on fallen leaves of a planted tree of variegated holly allowed a detailed study of its structures. One thing which was surprising was the presence of amorphous crystals in (or on) the pycnidial wall (top right in accompanying plate). These were definitely not stray crystals from the host tissues or another source, but solely confined to the pycnidia. I can find no references to this in the literature.
It might be interesting to see whether others have observed this or could look out for this feature. Particularly interesting would be whether such crystals also occur in var. nobilis on dead Laurus leaves or whether the crystal formation is triggered by having Ilex as a host.
Cordialement, Chris
