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12-11-2019 10:32

Miguel Ãngel Ribes Miguel Ángel Ribes

Hi againExactly at the same place than my previous

25-12-2019 17:54

Valencia Lopez Francisco Javier

Hola a todos/asEstas supuestas pezizas estaban en

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

28-08-2014 18:36

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

31-05-2026 22:53

éric ROMERO éric ROMERO

Bonjour tous, Je n'ai pas d'idée pour cette esp

30-05-2026 21:12

Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

31-05-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a rather

25-05-2026 16:35

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

29-05-2026 15:35

daniel FERRE

Bonjour à tous,Je voudrais votre aide pour cette

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Laetinaevia spec. ? on Euphorbia cyparissias in Southern Germany
Lothar Krieglsteiner, 05-08-2022 14:25
Lothar Krieglsteiner30.5.22, 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
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Hans-Otto Baral, 05-08-2022 21:02
Hans-Otto Baral
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
Lothar Krieglsteiner
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