11-12-2014 23:10
Björn Wergen
Hi there,I have an austrian collection of a Chaeto
11-12-2014 20:42
Michel Delpont
Bonsoir.Je suis à la recherche des descriptions d
10-12-2014 21:01
Fays St-Antoine, en bord de route, prov. LX, Arden
10-12-2014 00:10
Joop van der Lee
I have reported this species earlier but had no su
10-12-2014 11:04
Gernot FriebesHi, this species grows on dead culms and leaves o
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
