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04-06-2022 19:57

Thorben Hülsewig

Hi there,today i found these pyrenomycet on a cone

05-06-2022 02:07

Stefan Jakobsson

On an old stem of Chamaenerion angustifolium on th

06-06-2022 10:34

Jennifer Fiorentino

When examining the apothecia of an arthonoid liche

05-06-2022 19:17

Maria Plekkenpol

Hello,On cow dung I found several asco's. One of t

03-06-2022 23:11

Sergey Markov

I found small Lachnum on a stem of Filipendula ulm

05-06-2022 09:50

Mirek Gryc

Hello.The asco grew on the escarpment of the fores

03-05-2022 16:17

Josep Torres Josep Torres

Hola.Unos diminutos apotecios sobre la superficie

05-06-2022 10:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Dear all,Is there anyone has the following paper:D

04-06-2022 09:30

Bernard Declercq Bernard Declercq

Dear all,I am looking for following paper:K. Hanse

04-06-2022 12:23

Mirek Gryc

HelloI would ask for help in identifying this litt

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On picea cone Diaporthe sp. ?
Thorben Hülsewig, 04-06-2022 19:57
Hi there,

today i found these pyrenomycet on a cone of picea.
My first idea was Lophiotrema, but the spores are different in shape and have short appendages.
Any idea what this could be ?

best regards,
Thorben
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Alain GARDIENNET, 05-06-2022 07:25
Alain GARDIENNET
Re : On picea cone Diaporthe sp. ?
Hi, 
First, what about asci ? Bitunicate, or unitunicate ? Please, show us. Then you can eliminate the hypothesis Lophiotrema (bitunicate) or Diaporthe (unitunicate). Thus, a good description of the ascoma (a vertical section helps to see) and of the hamathecium can help to conclude.
Alain

PS : ascospores picture is a bit too bright.
Thorben Hülsewig, 05-06-2022 13:25
Re : On picea cone Diaporthe sp. ?
Hi Alain,
thanks for your help.
I just edited and attached the pictures of the asci.
The spore image is now darkened in the attachment and I tried to make a vertical section.
I hope it helps.

best regards,
Thorben


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Thomas Læssøe, 07-06-2022 13:29
Re : On picea cone Diaporthe sp. ?
Diaporthe/Cytospora with those asci