21-07-2024 10:13
Thierry Blondelle
Bonjour,Récolte sur branchette de Castanea dans u
21-07-2024 10:28
Alan Rockefeller
Which Peziza did I find on horse dung in Humboldt
19-07-2024 11:08
Miguel Ángel Ribes
Good morningThis Scutellinia from July 9 grew at 1
21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
16-07-2024 18:32
Andgelo Mombert
Bonsoir, Un discomycète sur Liochlaena lanceolat
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