05-08-2022 14:25
Lothar Krieglsteiner
30.5.22, Schloßberg near Weißenstein, Schwäbisc
05-08-2022 14:35
Andgelo Mombert
Bonjour, En vue de rédiger un petit article, je
02-08-2022 15:27
Petra Eimann
Hi all, this find is from 19.03.2022 on herbaceou
02-08-2022 21:46
Edvin Johannesen
These dark, erumpent, somewhat flaky apothecia, 1-
28-07-2022 23:00
Elisabeth StöckliBonsoir,Sur l'écorce de Picea abies (à '1'650 m)
28-07-2022 23:45
Josep Torres
Hola.Un liquen cortícola localizado en la repúbl
25-07-2022 19:50
Marcus YeoI am baffled by this anamorph. It looks distinctiv
Laetinaevia spec. ? on Euphorbia cyparissias in Southern Germany
Lothar Krieglsteiner,
05-08-2022 14:25
30.5.22, Schloßberg near Weißenstein, Schwäbische Alb.I first thought this should be Laetinaevia tithymalina, but the micros do not fit this species, nor does another species described by Hein.
I made my first slide in Kongo-SDS to stain the structures. The spores are about 15-19/4-5,5 µm large and become 1- to 3-septate at maturity. The asci are very beautifully hemiamyloid.
Does somebody have a hint?
Yours. Lothar
Hans-Otto Baral,
05-08-2022 21:02
Re : Laetinaevia spec. ? on Euphorbia cyparissias in Southern Germany
Hi Lothar
these asci do not look helotialean to me. Are you sure with hemiamyloid? Or is it rather a congophilous stain? Check KOH pretreatment to clarify this. The asci remind me of a Bionectriaceae, but the macro shows apothecia.
Lothar Krieglsteiner,
05-08-2022 21:07
Re : Laetinaevia spec. ? on Euphorbia cyparissias in Southern Germany
I am sure with hemiamyloid asci. You see in the first pictures (without IKI) that the ascus apices are not red.
Thanks for your thoughts and the tip with the KOH pretreatment.
Best regards, Lothar
Thanks for your thoughts and the tip with the KOH pretreatment.
Best regards, Lothar