29-01-2013 12:15
Stefan BlaserHello everybody I do have one more "burden of the
30-01-2013 01:10
Miguel Ángel Ribes
Good night againThis small (4-6 mm diam.) orange t
29-01-2013 10:59
Stefan BlaserHello everybody I found these black apothecia on
29-01-2013 18:31
Nina FilippovaThere is another collection from Chamaedaphne caly
29-01-2013 21:17
Miguel Ángel Ribes
Hi friendsI have a Ciboria on Alnus glutinosa, but
28-01-2013 12:20
Reza ShaianDear FriendsDo you have PDF file of Dissing 1966 (
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
